We offer our services worldwide through our global network of offices. Services accounted for approximately 79%71%, 77%69% and 72%74% of our revenue from continuing operations for the years ended December 31, 2016, 20152019, 2018 and 2014,2017, respectively.

We manufacture products primarily in fourfive facilities for distribution on a global basis. Product sales accounted for approximately 21%29%, 23%31% and 28%26% of our revenue from continuing operations for the years ended December 31, 2016, 20152019, 2018 and 2014,2017, respectively.

Our product sales backlog at December 31, 20162019 was approximately $6.8$15.5 million compared to $10.2$16.9 million at December 31, 2015.2018. Sources of raw materials for our products are readily available, and we expect that our current sales backlog at December 31, 20162019 will be completed in 2017.

Commercial oil and gas fields consist of porous and permeable reservoir rocks that contain natural gas, crude oil and water. Due to the density differences of the fluids, natural gas typically caps the field and overlies an oil layer, which overlies the water. We provide services that characterize the porous reservoir rock, and all three reservoir fluids.fluids and their derived products. Services relating to these fluids include determining quality and measuring quantity of the fluids and their derived products. This includes determining the value of different crude oil and natural gases by analyzing the individual components of complex hydrocarbons. We measure thesereservoir hydrocarbons at reservoir conditions to determine the changes in their physical properties with changing pressure and temperature.

We analyze samples of reservoir rocks for their porosity, which determines reservoir storage capacity, and for their permeability, which defines the ability of the fluids to flow through the rock. These measurements are used to determine how much oil and gas are present in a reservoir and the rates at which the oil and gas can be produced. We also use our proprietary services and technologies to correlate the reservoir description data to wireline logs and seismic data by determining the different acoustic velocities of reservoir rocks containing water, oil and natural gas.

The combined use of both the reservoir rock and fluid data are invaluable to oil companies to determine the most efficient method by which to recover, process and refine these hydrocarbons to produce the maximum value added to crude oil and natural gas fields. Early evaluations and key decisions about well performance and viability are important for optimizing a reservoir. This is accomplished by using our Digital Rock Characteristics (DRC)proprietary and patented laboratory methods, including both traditional physical measurements and more recently introduced new technologies, such as Core Lab’s Non-Invasive Technologies for Reservoir Optimization^SM (“NITRO^SM”) services. NITRO^SM services which include (1)includes Dual Energy CT which isComputed Tomography ("DECT"), Micro Computed Tomography, high and low frequency nuclear magnetic resonance, high-resolution gamma logging and continuous high energy x-ray fluorescence, along with other Core Lab proprietary technologies.

Core Lab's proprietary DECT scanner-based deliverables generate millimeter-scale three dimensional images and accompanying high-resolution petrophysical logs on cored intervals by calibrating DECT information to the vast library of physical measurements in Core Lab's proprietary database. The DECT deliverables from Core Lab are more detailed than down-hole logs and provide better bed resolution as well as accurate information on rock properties such as lithology, porosity, density, rock strength and acoustic velocities.

DECT, when combined with Continuous Dual Gamma and Scanning X-ray Fluorescence (“CS-XRF”), allows us to assess continuous high-resolution elemental composition of the cored intervals. A proprietary formation-specific “inversion” technique can be used to convert the detailed elemental composition to a non-destructive petrophysical evaluation techniquecontinuous mineral map enabling us to provide early time insightgenerate detailed lithology descriptions of the reservoir lithology and to perform a comprehensive reservoir quality; and (2) Micro CT which is a high resolution pore imaging service that provides early time quantification of both routine and special core analysis properties.

We have developed unique analytical processes to understand the flow characteristics and saturation profiles of unconventional reservoir systems including (1) High Frequency Nuclear Magnetic Resonance (NMR)("NMR") measurements to allow

the T1/T2 mapping to gain understanding of movable vs. unmovablenon-movable fluid saturation distribution of these complex system;systems; and (2) Enhanced Oil Recovery (EOR)("EOR") of shale reservoirs by evaluating the effectiveness of gas cycling in nano-pore structures to significantly increase long-term production rates and volumes.

The Iron Corehandintegration, as well as modeling of these critical information is possible because of Core Lab’s ability to use our extensive RAPID^TM is database and identify analogs from Core Lab’s proprietary World Wide Rock Catalog.

Core Lab’s Digital Innovation Group integrates results and interpretations into a unit designedcomprehensive, web-enabled platform for client access. This allows our clients to handlegain insight into their core intervals at an accelerated pace, for all non-invasive technologies as well as time-honored laboratory analysis. Through this integrated visually interactive platform, key reservoir performance indicators are presented, evaluated and move core in the field to eliminate the inherent risk of back injury and dropped core. The unit is self-contained and designed to fit in the limited spaces available on offshore rigs. The system ensures proper handling of core material in the field and protecting staff from serious injuries.

Core Lab holds various patents, trade secrets, and proprietary designs for laboratory equipment required to analyze reservoir rocks as well as the properties and phase behavior of reservoir fluids.fluids and derived products. We manufacture a wide range of ambient and reservoir condition rock and fluid analysis laboratory equipment for our own use throughout our international laboratory network. Among these devices are complex, high-pressure, high temperature, reservoir condition, multi-phase flow systems and full visualization PVT cells, along with the ancillary equipment required to support these laboratory programs. We also sell equipment of this type to universities, government institutes, and client company research labs.

While recognizing the need to optimize the logistical chain of our clients, from producing well to retail sales of petroleum products, a state-of-the-art IT platform CONNECT: has beenwas launched to efficiently acquire our field data, laboratory analysis, optimize workflows and any other other observations relevant to our client base. The system is designed in such a way that there is onlyfor single data entry, and that data can be used for further analysis and, more importantly, be shared with our clients by process flow dashboards with key performance indicators. ButThe system can also by sharingshare real-time data on mobile devices, enabling our clients to make quick decisions.

This new methodology of sharing data has been embraced by an increasing number of clients, as it has not only saved them costs, but, more importantly, the data can be used for trend analysis in many ways, such as the ability to forecast bottlenecks, thus eliminating waste and increasing efficiency.

Two experience centers have been set up, both in the U.S. and Europe, where our clients can get acquainted with optimizing the flow of business as well as our advanced systems for data analysis. All initiatives are meant to increase efficiency and add value to our client base.

We provide diagnostic services and products to help optimize completion and reservoir operations and field development strategies in order to increase recoverable reserves in the most efficient way. Two production enhancement methods commonly used are (i) hydraulic fracturing of the reservoir rock to improve flow and (ii) flooding a reservoir with water, carbon dioxide, nitrogen or hydrocarbon gases to force more oil and gas to the wellbore. Many oilfields today are hydraulically fractured and/or flooded to maximize oil and gas recovery. Although Core LaboratoriesLab is not a hydraulic fracturing company, we do provide services that are used by others to develop and optimize hydraulic fracturing and field flood projects and to evaluate the success of those projects. Our services, technologies and technologiesexpertise play a key role in the success of both methods.

The hydraulic fracturing of a producing formation is achieved by pumping a fluid slurry containing a proppant material into the reservoir zone at extremely high pressures. This fractures the rock and the proppant material "props" or holds the fractures open after the pressure pumping is complete so that reservoir fluids can flow to the production wellbore. Our data on rock type and strength are critical for determining the proper design of the hydraulic fracturing job. In addition, our testing indicates whether the fluid slurry is compatible with the reservoir rock so that damage does not occur that would restrict production. We also provide testing of various propping agents and software to help pick the best proppant based on net present value calculations of client investments. Our proprietary and patented ZERO WASH^® tracer technology is used to determine that the proppant material was properly placed in the fracture tocluster efficiency and ensure effective flowmaximum stimulated reservoir volume and increased ultimate recovery.

SPECTRACHEM^® is another proprietary and patented technology developed for optimizing hydraulic fracture performance. SPECTRACHEM^® is used to aid operators in determining the efficiency of the fracture fluids used. SPECTRACHEM^® tracers allow operators to evaluate the quantity of fracture fluid that returns to the wellbore during the clean-up period after a hydraulic fracturing event. This technology also allows our clients to evaluate load recovery, gas breakthrough, fluid leak-off and breaker efficiency, all of which are important factors for optimizing oil and/or natural gas production after the formation is hydraulically fractured.

The SPECTRACHEM^® fracture diagnostic service continued to evolve with the introduction of the SPECTRACHEM^®Plus service in early 2009. The SPECTRACHEM^®Plus service is effective in determining the effectiveness and efficiency of the hydraulic fracture stimulation of long multi-stage horizontal wells in oil- and gas-shale plays throughout North America and with growing demand internationally as unconventional resource plays are developed globally. SPECTRACHEM^®Plus data sets are used to determine how each frac stage is flowing. Frac stages with ineffective flows may warrant further stimulation, remedial actions and guide improvements on future frac designs.

Our unique completion monitoring system, COMPLETION PROFILER™, helps to determine flow rates from reservoir zones after they have been hydraulically fractured. This provides our clients with a baseline image of early production information and can be compared to subsequent production logsimages later in the life of the well to see if and wherehow hydrocarbon production varies.

Our FLOWPROFILER^TM service, a proprietary hydrocarbon-based tracer technology, which is a further development of our patented SPECTRACHEM^® technology and has been in use for more than five years, quantifies the hydrocarbon production from discrete segments in multi-stage horizontal well completions and stimulations in unconventional tight-oil or gas plays. We have tracers used for oil reservoirs which are different from our tracers used for gas reservoirs. FLOWPROFILER^TM technology and the analytical methodology for identifying the hydrocarbon-soluble tracers are the protected intellectual property of Core Lab.

FLOWPROFILER^TM technology employs a unique hydrocarbon-soluble tracer and water-soluble tracer introduced into specific and isolated stages via the stimulating proppant stream. The hydrocarbon-soluble tracers are absorbed by the crude oil orand gas associated with each stage while the water-soluble tracer remains in the stimulation fluid. When the well is flowed, crude oil, or gas and water samples are collected and analyzed in the laboratory to identify and quantify oil or gas flows from each stage and

the cleanup of the stimulation fluid. Stages not at optimum flow rates can be identified, precipitating remedial efforts to increase flow and recovery rates, and to provide valuable insight for future wells. This service which we first used more than five years ago, is being used to monitor offset well interference by sampling offset well oil, or gas and water production. The amount of tracer detected in offset wells is being used to help our clients optimize both lateral and vertical well spacing and the amount of fracturing fluids for each stage.

We conduct dynamic flow tests of the reservoir fluids through the reservoir rock, at actual reservoir pressure and temperature, to realistically simulate the actual flooding of a producing zone. We use patented technologies, such as our Saturation Monitoring by the Attenuation of X-rays (SMAX™("SMAX^TM"), to help design the enhanced recovery project. After a field flood is initiated, we are often involved in monitoring the progress of the flood to ensure the maximum amount of incremental production is being achieved through the use of our SPECTRAFLOOD^TM technology, which we developed to optimize sweep efficiency during field floods.

Our PACKSCAN^® patented technology is used as a tool to evaluate gravel pack effectiveness in an unconsolidated reservoir.reservoirs. PACKSCAN^® measures the density changes in the area around the tool and is designed to observe the changes within the gravel pack annulus to verify the completeness of the gravel pack protection of the wellbore without any additional rig time.

In addition to Core'sCore Lab's many patented reservoir analysis technologies, Production Enhancement has established itself as a global leader in the manufacturemanufacturing and distribution of high-performance perforating products. Core'sCore Lab's unique understanding of complex reservoirs supports our ability to supply perforating systems engineered to maximize well productivity by reducing, eliminating and overcoming formation damage caused during the drilling and completion of oil and gas wells. This "systems" approach to the perforatingperforation of an oil or gas well has resulted in numerous patented products.

HERO^®TM (High ("High Efficiency Reservoir Optimization), SUPERHERO^®Optimization") and SUPERHEROSuperHERO^®TMPlus are examples of the patented perforating systems which quickly gained market acceptance and became industry leaders in enhancing reservoir performance. The SUPERHEROSuperHERO^®TM and SUPERHERO^®Plus charges charge evolved from the HERO^{® TM}charge technology and use a proprietary and patented design of powdered metal liners and explosives technology resulting in a deeper and cleaner perforating tunnel into the oil and gas reservoir. This allows greater flow of hydrocarbons to the wellbore and helps to maximize hydrocarbon recovery from the reservoir. The more recent charge development of the HEROHERO-HR^®TM Hard Rock or HERO^®-HR (Hard Rock) charges, resulted in Core Lab also having the deepest penetrating perforating charges on the market as certified by API testing.

HERO^®TMPerFRAC is the newest next generation of charges using HERO^®TM technology. inIn addition to the benefits of HERO^®TM technology, HERO^®TMPerFRAC charges are designed specifically for optimizing fracture stimulation well completions by providing a uniform hole size which minimizes tortuosity effects in the rock during well stimulation resulting in less surface horsepower and less time which both translate into lower costs needed to initiate the fracturing operation. In addition to optimizing stimulation operations with faster, lower cost programs, the production is also enhanced by not only the better well stimulations but the improved near debris free perforation tunnels as the well fluids come back into the casing from the rock. Core'sCore Lab's manufacturing operations in the United States and Canada continue to meet the global demand for our perforating systems through facility expansion in addition to gains in efficiency and productivity.

The HERO^®TM line of perforating charges, HERO^®TMPerFRAC, SUPERHEROSuperHERO^®TM, HERO-HR^TM and SUPERHERO^®PlusReFRAC charges can eliminate the ineffective perforations that would otherwise limit daily oil and natural gas production and hinder the optimal fracture stimulation programs needed for prolific production from the Permian Basin, Bakken, Eagle Ford, Marcellus, Niobrara and similar oil- and gas-shale formations.

Core Lab's Production Enhancement team has experienced technical services personnel to support clients through our global network of offices for the everyday use of our perforating systems and the rapid introduction of new products. Our personnel are capable of providing client training and on-site services in the completion of oil and gas wells. The patented X-SPAN^® and GTX-SPAN^® casing patches are supported by our technical services personnel. Recent market applications in Canada's steam-assisted gravity drainage (SAGD)("SAGD") environment have resulted in an upgrade in temperature ratings to as much as 600°F. These systems are capable of performing in high temperature as well as high pressure oil and gas environments and are used to seal non-productive reservoir zones from the producing wellbore.

We market and sell our services and products through a combination of sales representatives, technical seminars, trade shows and print advertising. Direct sales and marketing are carried out by our sales force, technical experts and operating managers, as well as by sales representatives and distributors in various markets where we do not have offices. Our Business Development group manages a Large Account Management Program to better serve our largest and most active clients by meeting with key personnel within their organizations to ensure the quality of our services and products are meeting their expectations and we are addressing any issues or needs in a timely manner.

The market for our services and products is characterized by changing technology and frequent product introduction. As a result, our success is dependent upon our ability to develop or acquire new services and products on a cost-effective basis and to introduce them into the marketplace in a timely manner. Many of our acquisitions have allowed us to obtain the benefits of the acquired company's research and development projects without theincurring significant costs that would have been incurred if we had attempted to develop the services and products ourselves. We incur costs as part of internal research and development, and these costs are charged to expense as incurred.incurred and reflected in the operational results of the associated business segment. We intend to continue committing financial resources and effort to the development and acquisition of new services and products. Over the years, we have made a number of technological advances, including the development of key technologies utilized in our operations. Substantially all of theour new technologies have resulted fromare the result of requests and guidance from our clients, particularly major oil companies.

We believe our patents, trademarks, technology, trade secrets and other intellectual property rights are an important factor in maintaining our technological advantage, although no single one of these is considered essential to our success. Typically, we will seek to protect our intellectual property in all jurisdictions where we believe the cost of such protection is warranted. While we have patented some of our key technologies, we do not patent all of our proprietary technology even where regarded as patentable. We protect our intellectual property, including through the use of appropriate confidentiality agreements, legal enforcement proceedings and by other means.

We operate facilities in more than 50 countries. Our non-U.S. operations accounted for approximately 62%57%, 58%54% and 52%56% of our revenue from operations during the years ended December 31, 2016, 20152019, 2018 and 2014,2017, respectively. We attribute service revenue to the country in which the service was performed rather than where the reservoir or project is located, while we attribute product sales revenue to the country where the product was shipped as we feel this gives a clearer view of our operations. We do, however, have significant levels of service revenue performed and recorded in the U.S., where the services were performed, that are sourced from projects on non-U.S. oilfields.

The following graphs and table summarize our reported revenue by geographic region for the years ended December 31, 2016, 20152019, 2018 and 2014:2017:

▪	availability of materials and equipment from key suppliers; andsuppliers.

▪	cyber-attacks on our network that disrupt operations or result in lost or compromised critical data.

The oil and gas industry has historically experienced periodic downturns, which have been characterized by diminished demand for our oilfield services and products and downward pressure on the prices we charge. A significant downturn in the oil and gas industry could result in a reduction in demand for oilfield services and could adversely affect our operating results.

The downturn

Changes in macro-economic factors impacting the oil and gas industry hasmay negatively affected and will likely continue to affect our ability to accurately predict client demand, causingwhich could cause us to hold excess or obsolete inventory and experience a reduction in gross margins and financial results.

We cannot accurately predict which or what level of our services and products our clients will need in the future. Orders are placed with our suppliers based on forecasts of client demand and, in some instances, we may establish buffer inventories to accommodate anticipated demand. Our forecasts of client demand are based on multiple assumptions, each of which may introduce errors into the estimates. In addition, many of our suppliers require a longer lead time to provide products than our clients demand for delivery of our finished products. If we overestimate client demand, we may allocate resources to the purchase of materials or manufactured products that we may not be able to sell when we expect to, if at all. As a result, we could hold excess or obsolete inventory, which would reduce gross margin and adversely affect financial results. Conversely, if we underestimate client demand or if insufficient manufacturing capacity is available, we could miss revenue opportunities and potentially lose market share and damage our client relationships. In addition, any future significant cancellations or deferrals of service contracts or product orders could materially and adversely affect profit margins, increase product obsolescence and restrict our ability to fund our operations.

We depend on the results of our international operations, which expose us to risks inherent in doing business abroad.

We conduct our business in over 50 countries; business outside of the United States accounted for approximately 62%, 58% and 52% of our revenue during the years ended December 31, 2016, 2015 and 2014, respectively. We attribute service revenue to the country in which the service was performed while we attribute product sales revenue to the country where the product was shipped as we feel this gives a clearer view of our operations. We do, however, have significant levels of revenue recorded in the U.S., where the services were performed, that are sourced from projects on non-U.S. oilfields.

countries. Our operations, and those of our clients, are subject to the various laws, regulations and other legal requirements of those respective countries as well as various risks peculiar to each country, which may include, but are not limited to:

▪	global economic conditions;

▪	political actions and requirements of national governments including trade restrictions, embargoes, seizure, detention, nationalization and expropriations of assets;

▪	interpretation of tax statutes and requirements of taxing authorities worldwide, including the United States, routine examination by taxing authorities and assessment of additional taxes, penalties and/or interest;

▪	international agreements that restrict GHG emissions, such as trade and economic sanctions, tariffs or other restrictions imposed by the Paris agreement that calls for such countries to set GHG emissions targets in their own countries and to be transparent in how such countries achieve those GHG emissions targets;European Union, the United States or other countries;

▪	civil unrest;

▪	acts of terrorism;

▪	fluctuations and changes in currency exchange rates (see section below);

▪	the impact of inflation;

▪	difficulty in repatriating foreign currency received in excess of the local currency requirements; and

▪	current conditions in oil producing countries such as Venezuela, Nigeria, Libya, Iran and Iraq considering their potential impact on the world markets.

Historically, economic downturns and political events have resulted in lower demand for our services and products in certain markets. The continuing instability in the Middle East and North Africa and the potential for activity from terrorist groups that

the U.S. government has cautioned against have further heightened our exposure to international risks. The global economy is highly influenced by public confidence in the geopolitical environment and the situation in the Middle East and North Africa continues to be highly fluid; therefore, we expect to experience heightened international risks.

Our results of operations may be significantly affected by foreign currency exchange rate risk.

We are exposed to risks due to fluctuations in currency exchange rates. By the nature of our business, we derive a substantial amount of our revenue from our international operations, subjecting us to risks relating to fluctuations in currency exchange rates.

Our results of operations may be adversely affected because our efforts to comply with applicable anti-corruption laws such as the United States' Foreign Corrupt Practices Act (the "FCPA") and the United Kingdom's Anti-Bribery Act (the "ABA") could restrict our ability to do business in foreign markets relative to our competitors who are not subject to these laws.

We operate in many parts of the world that have experienced governmental corruption to some degree and, in certain circumstances, strict compliance with anti-bribery laws may conflict with local customs and practices. We may be subject to competitive disadvantages to the extent that our competitors are able to secure business, licenses or other preferential treatment by making payments to government officials and others in positions of influence or throughthough other methods that we are prohibited from using.

We are subject to the regulations imposed by the FCPA and the ABA, which generally prohibits us and our intermediaries from making improper payments to foreign officials for the purpose of obtaining or keeping business. In particular, we may be held liable for actions taken by our strategic or local partners even though our partners are not subject to these laws. Any such violations could result in substantial civil and/or criminal penalties and might adversely affect our business, results of operations or financial condition. In addition, our ability to continue to work in these parts of the world discussed above could be adversely affected if we were found to have violated certain laws, including the FCPA and the ABA.

If we are not able to develop or acquire new products or our products become technologically obsolete, our results of operations may be adversely affected.

The market for our services and products is characterized by changing technology and product introduction. As a result, our success is dependent upon our ability to develop or acquire new services and products on a cost-effective basis and to introduce them into the marketplace in a timely manner. While we intend to continue committing substantial financial resources and effort to the development of new services and products, we may not be able to successfully differentiate our services and products from those of our competitors. Our clients may not consider our proposed services and products to be of value to

them; or if the proposed services and products are of a competitive nature, our clients may not view them as superior to our competitors' services and products. In addition, we may not be able to adapt to evolving markets and technologies, develop new products, or achieve and maintain technological advantages.

If we are unable to continue developing competitive products in a timely manner in response to changes in technology, our businesses and operating results may be materially and adversely affected. In addition, continuing development of new products inherently carries the risk of inventory obsolescence with respect to our older products.

We are subject to the risk of supplier concentration.

Certain of our product lines depend on a limited number of third party suppliers and vendors available in the marketplace. As a result of this concentration in some of our supply chains, our business and operations could be negatively affected if our key suppliers were to experience significant disruptions affecting the price, quality, availability or timely delivery of their products. For example, we have a limited number of vendors for our manufactured product lines. The partial or complete loss of any one of our key suppliers, or a significant adverse change in the relationship with any of these suppliers, through consolidation or otherwise, would limit our ability to manufacture and sell certain of our products.

If we are unable to obtain patents, licenses and other intellectual property rights covering our services and products, our operating results may be adversely affected.

Our success depends, in part, on our ability to obtain patents, licenses and other intellectual property rights covering our services and products. To that end, we have obtained certain patents and intend to continue to seek patents on some of our inventions, services and products. While we have patented some of our key technologies, we do not patent all of our proprietary

technology, even when regarded as patentable. The process of seeking patent protection can be long and expensive. There can be no assurance that patents will be issued from currently pending or future applications or that, if patents are issued, they will be of sufficient scope or strength to provide meaningful protection or any commercial advantage to us. In addition, effective copyright and trade secret protection may be unavailable or limited in certain countries. Litigation, which could demand significant financial and management resources, may be necessary to enforce our patents or other intellectual property rights. Also, there can be no assurance that we can obtain licenses or other rights to necessary intellectual property on acceptable terms.

There are risks relating to our acquisition strategy. If we are unable to successfully integrate and manage businesses that we have acquired and any businesses acquired in the future, our results of operations and financial condition could be adversely affected.

One of our key business strategies is to acquire technologies, operations and assets that are complementary to our existing businesses. There are financial, operational and legal risks inherent in any acquisition strategy, including:

▪	increased financial leverage;

▪	ability to obtain additional financing;

▪	increased interest expense; and

▪	difficulties involved in combining disparate company cultures and facilities.

The success of any completed acquisition will depend on our ability to effectively integrate the acquired business into our existing operations. The process of integrating acquired businesses may involve unforeseen difficulties and may require a disproportionate amount of our managerial and financial resources. In addition, possible future acquisitions may be larger and for purchase prices significantly higher than those paid for earlier acquisitions. No assurance can be given that we will be able to continue to identify additional suitable acquisition opportunities, negotiate acceptable terms, obtain financing for acquisitions on acceptable terms or successfully acquire identified targets. Our failure to achieve consolidation savings, to incorporate the acquired businesses and assets into our existing operations successfully or to minimize any unforeseen operational difficulties could have a material adverse effect on our financial condition and results of operation.

We are subject to a variety of environmental and occupational safety and health laws and regulations, which may result in increased costs and significant liability to our business.

We are subject to a variety of stringent governmental laws and regulations, both in the United States and abroadforeign countries relating to protection of the environment, and occupational health and safety and the use and storage of chemicals and gases used in our analytical and manufacturing processes and the discharge and disposal of wastes generated by those processes.safety. Certain of these laws and regulations may impose joint and several, strict liability for environmental liabilities, such as the remediation of historical contamination or recent spills, and failure to comply with such laws and regulations could result in the assessment of damages, fines and penalties, the imposition of remedial or corrective action obligations, the occurrence of delays or cancellations in permitting or development of projects, or the suspension or cessation of some or all of our operations. These stringent laws and regulations could require

us to acquire permits or other authorizations to conduct regulated activities, install and maintain costly equipment and pollution control technologies, impose specific safety and health standards addressing work protection, or to incur costs or liabilities to mitigate or remediate pollution conditions caused by our operations or attributable to former owners or operators. If we fail to control the use, or adequately restrict the emission or discharge, of hazardous substances or wastes, we could be

Additionally, our clients are also subject to future material liabilities including remedial obligations. In addition, public interestmost, if not all, of the same laws and regulations relating to environmental protection and occupational safety and health in the protection ofUnited States and in foreign countries where we operate. To the environment has increased dramatically in recent years with governmental authorities imposing more stringent and restrictive legal requirements. We anticipate that the trend of more expansive and stricterextent existing environmental laws and regulations will continue, the occurrence of which may require us toor any new or more stringently enforced environmental legal requirements significantly increase our capital expendituresclients’ compliance costs, pollution mitigation costs or remedial costs, our clients could result in increased operating expenses.

Dueelect to concern over the risk of climate change, there has been a broad range of proposeddelay, restrict or promulgated state, national and international laws focusing on GHG reduction. Regulatory frameworks adopted,cancel drilling, exploration or being considered for adoption, to reduce GHG emissions include cap and trade regimes, carbon taxes, restrictive permitting, increased efficiency standards, and incentives or mandates for renewable energy. For example, the European Emissions Trading Scheme is a program throughproduction programs, which many of the European Union member states are implementing cap and trade controls covering numerous power stations and industrial facilities. Also, in December 2015, the United States joined other countries of the United Nations in preparing the Paris agreement that requires member countries to develop reductions in GHG emissions. The Paris agreement was signed by the United States in April 2016 and entered into force in November 2016; however, this agreement does not create any binding

obligations for nations to limit their GHG emissions, but includes pledges to voluntarily limit or reduce future emissions. These proposed or promulgated laws and legal initiatives apply or could apply in countries where we have interests or may have interests in the future. These requirements could make our services and products more expensive, lengthen project implementation times, and reduce demand for the production of oilour products and natural gas, which could decrease demand for our services and products. In the United States,have a numbermaterial adverse effect on our business, financial condition, results of stateoperations, or cash flows. For example, hydraulic fracturing continues to attract considerable public and regional efforts have emerged that are aimed at tracking or reducing emissions of GHGs and the U.S. Congress has from time to time considered legislation to reduce emissions of GHGs but no such legislation has yet been adopted. However, the EPA has determined that emissions of GHGs present a danger to public health and the environment and, based on these findings, has adopted regulations under existing provisions of the CAA that establish construction and operating permit reviews for GHG emissions from certain large stationary sources that are already potential major sources of criteria pollutant emissions and that require the monitoring and annual reporting of GHG emissions from specified onshore and offshore production sourcesgovernmental attention, both in the United States which include the operations of many of our exploration and production clients. Although it is not possible at this timein foreign countries, resulting in various controls applied to predict how legislation or new regulations that may be adopted to address GHG emissions in the United State would impact our business, any such future laws and regulations that require reporting of GHGs or otherwise limit emissions of GHGs from our clients’ operations could require our clients to incur increased costs and also could adversely affect demand for the oil and natural gas that they produce, which could decrease demand for our services and products.

fracturing activities.

Hydraulic fracturing is a process used by oil and gas exploration and production operators in the completion of certain oil and gas wells whereby water, sand or other proppants and chemicalschemical additives are injected under pressure into subsurface formations to stimulate gas and, to a lesser extent, oil production. Some countries outside the United States, such as Bulgaria, the Czech Republic and France, currently have imposed moratoria on hydraulic fracturing while other countries, such as the United Kingdom,Canada, allow fracturing activities but those activities are not as widely pursued as they are in the United States. In the United States, the fracturing process is typically regulated by state oil and gas commissions, but several federal agencies have asserted regulatory authority over certain aspects of the process. For example, in June 2016, the EPA published an effluent limit guideline final rule prohibiting the discharge of wastewater from onshore unconventional oil and natural gas extraction facilities to publicly owned wastewater treatment plants and, also in June 2016, the EPA published

Additionally, a final rule establishing first-time standards to address emissions of methane from hydraulically-fractured oil and natural gas well completions. Additionally, the federal Bureau of Land Management published a final rule in March 2015 that established new or more stringent standards relating to hydraulic fracturing on federal and American Indian lands, which rule was struck down by a federal judge in June 2016 but that decision is currently being appealed by the federal government. Also, in December 2016, the EPA released its final report on the potential impacts of hydraulic fracturing on drinking water resources, concluding that “water cycle” activities associated with hydraulic fracturing may impact drinking water resources under certain circumstances, noting that the following hydraulic fracturing water cycle activities and local- or regional-scale factors are more likely than others to result in more frequent or more severe impacts: water withdrawals for fracturing in times or areas of low water availability; surface spills during the management of fracturing fluids, chemicals or produced water; injection of fracturing fluids into wells with inadequate mechanical integrity; injection of fracturing fluids directly into groundwater resources; discharge of inadequately treated fracturing wastewater to surface waters; and disposal or storage of fracturing wastewater in unlined pits. In addition, the U.S. Congress has from time to time considered the adoption of legislation to provide for federal regulation of hydraulic fracturing. At the state level, agrowing number of states have adopted, and other states are considering adopting, legal requirements that could impose more stringent disclosure, permitting disclosure and/or well construction requirements on hydraulic fracturing activities. States could elect to prohibit fracturing altogether, following the approach taken by the State of New York in 2015. In addition,operations, and local governments may also seek to adopt ordinances within their jurisdictions regulating the time, place and manner of drilling activities in general or hydraulic fracturing activities in particular. activities.

If new or more stringent federal, state or local legal restrictions related to the hydraulic fracturing process are adopted in areas where our exploration and production clients’ operate, those clients could incur potentially significant added costs to comply with such requirements and experience delays or curtailment in the pursuit of exploration, development or production activities, which could reduce demand for our products and services.

Climate change continues to attract considerable public, political and scientific attention in the United States and in foreign countries. As a result, numerous regulatory initiatives have been made, and are likely to continue to be made, at the international, national, regional and state levels of government to monitor and limit existing emissions of GHGs as well as to restrict or eliminate such future emissions.

See "Environmental and Occupational Safety and Health Regulations", under Item 1 of this Form 10-K for further discussion on environmental and worker safety and health matters.

We may be unable to attract and retain skilled and technically knowledgeable employees, which could adversely affect our business.

Our success depends upon attracting and retaining highly skilled professionals and other technical personnel. A number of our employees are highly skilled engineers, geologists and highly trained technicians, and our failure to continue to attract and retain such individuals could adversely affect our ability to compete in the oilfield services industry. We may confront significant and potentially adverse competition for these skilled and technically knowledgeable personnel, particularly duringIn periods of increased demand for oil and gas. Additionally, at timeshigh utilization, there may be a shortage of skilled and technical personnel available in the market, potentially compounding the difficulty of attracting and retaining these employees. As a result, our business, results of operations and financial condition may be materially adversely affected.

We require a significant amount of cash to service our indebtedness, make capital expenditures, fund our working capital requirements and pay our dividend, and our ability to generate cash may depend on factors beyond our control.

Our ability to make payments on and to refinance our indebtedness, to fund planned capital expenditures, and pay our dividend depends, in part, on our ability to generate cash in the future. This ability is, to a certain extent, subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control.

No assurance can be given that we will generate sufficient cash flow from operations or that future borrowings will be available to us in an amount sufficient to enable us to service and repay our indebtedness or to fund our other liquidity needs. If we are unable to satisfy our debt obligations, we may have to undertake alternative financing plans, such as refinancing or restructuring our indebtedness, selling assets, reducing or delaying capital investments or seeking to raise additional capital. We cannot assure that any refinancing or debt restructuring would be possible or, if possible, would be completed on favorable or

acceptable terms, that any assets could be sold or that, if sold, the timing of the sales and the amount of proceeds realized from those sales would be favorable to us or that additional financing could be obtained on acceptable terms.

Disruptions in the capital and credit markets could adversely affect our ability to refinance our indebtedness, including our ability to borrow under our existing revolving credit facility ("Credit Facility"). Banks that are party to our existing Credit Facility may not be able to meet their funding commitments to us if they experience shortages of capital and liquidity or if they experience excessive volumes of borrowing requests from us and other borrowers within a short period of time.

Because we are a Netherlands company, it may be difficult for you to take legal action against our supervisory directors or us and it may not be possible to obtain or enforce judgments against us.

Although we are a Netherlands company, our assets are located in a variety of countries. In addition, not all members of our supervisory board of directors are residents of the same countries as other supervisory directors. As a result, it may not be possible for you to effect service of process within certain countries upon our supervisory directors, or to enforce against our supervisory directors or use judgments of courts of certain countries predicated upon civil liabilities under a country's federal securities laws. Because there is no treaty between certain countries and Thethe Netherlands providing for the reciprocal recognition and enforcement of judgments, some countries' judgments are not automatically enforceable in Thethe Netherlands or in the United States, where the principal market for our shares is located. In addition, there is doubt as to whether a court in one country would impose civil liability on us or on the members of our supervisory board of directors in an original action brought against us or our supervisory directors in a court of competent jurisdiction in another country and predicated solely upon the federal securities laws of that other country.

Our operations are subject to the risk of cyber-attacks that could have a material adverse effect on our consolidated results of operations and consolidated financial condition.

Our information technology systems are subject to possible breaches and other threats that could cause us harm. Although we devote significant resources to protect our systems, there can be no assurance that our systems will prevent or limit the effects of cyber-attacks or will be sufficient to prevent or detect, or to avoid a material adverse impact on our systems when such attacks do occur. If our systems for protecting against cyber security riskscyber-attacks prove not to be sufficient, we could be adversely affected by loss or damage of intellectual property, proprietary information, or client data, our reputation, interruption of business operations, or additional costs to prevent, respond to, or mitigate cyber security attacks.cyber-attacks. These risks could have a material adverse effect on our business, consolidated results of operations, and consolidated financial condition.

Regulations related to conflict-free minerals could limit the supply and/or increase the cost of certain metals used in our manufacturing processes.

In 2012, the SEC issued their final rule to implement Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act regarding mandatory disclosure and reporting requirements by public companies of their use of “conflict minerals” (tantalum, tin, tungsten and gold) and whether these minerals originate in the Democratic Republic of Congo or adjoining countries ("conflict area"). As our suppliers determine the original source of the conflict minerals they sell or use in their manufacturing processes, we may find that sourcing of these conflict minerals from areas outside the conflict area (conflict-free) at competitive prices and availability in sufficient quantities could be affected. If the number of suppliers who provide conflict-free minerals is limited, this could have a material adverse effect on the Company's ability to purchase these conflict-free products or to purchase these conflict-free products at a favorable price or on favorable terms in the future.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 2. PROPERTIES

Currently, we have over 70 offices (totaling approximately 3.02.7 million square feet of space) in more than 50 countries. In these locations, we lease approximately 2.01.7 million square feet and own approximately 1.0 million square feet. We serve our worldwide clients through six Advanced Technology Centers ("ATCs") that are located in Aberdeen, Scotland; Abu Dhabi, UAE;United Arab Emirates; Calgary, Canada; Houston, Texas; Kuala Lumpur, Malaysia; and Rotterdam, The Netherlands. The ATCs provide support for our more than 50 regional specialty centers located throughout the global energy producing provinces. In addition, we haveour more significant manufacturing facilities are located in Godley, Texas, and Red Deer, Alberta, Canada and Pyle, Wales which are included in our Production Enhancement business segment. Our facilities are adequate for our current operations; however, expansion into new facilities or the replacement or modification of existing facilities may be required to accommodate future growth.

ITEM 3. LEGAL PROCEEDINGS

See Note 1113 - Commitments and Contingencies of the Notes to the Consolidated Financial Statements.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

Not applicable.

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Price Range of Common Shares

Our common shares trade on the New York Stock Exchange ("NYSE") and the Euronext Amsterdam Stock Exchange ("Euronext Amsterdam") under the symbol "CLB". The range of high and low sales prices per share of the common shares as reported by the NYSE and Euronext Amsterdam are set in the following table for the periods indicated:

	NYSE						Euronext Amsterdam
	(U.S. Dollars)						(Euros)
2016	High			Low			High			Low
Fourth Quarter	$	124.84		$	96.30		€	117.50		€	87.00
Third Quarter	$	127.82		$	102.50		€	111.05		€	92.01
Second Quarter	$	135.49		$	102.22		€	120.00		€	92.00
First Quarter	$	118.87		$	84.50		€	108.00		€	71.52
2015
Fourth Quarter	$	125.42		$	94.36		€	116.00		€	88.50
Third Quarter	$	118.78		$	91.63		€	107.00		€	87.50
Second Quarter	$	134.87		$	104.24		€	121.00		€	96.00
First Quarter	$	120.34		$	87.27		€	104.90		€	77.21

On February 9, 2017,7, 2020, the closing price, as quoted by the NYSE, was $116.65$34.66 per share and there were 44,152,13844,445,656common shares issued and outstanding held by approximately 209203 record holders. These amounts exclude shares held by us as treasury shares.

See Part III, "Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters" for discussion of equity compensation plans.

Dividend Policy

In 2008, Core Laboratories announced the initiation of a cash dividend program. Cash dividends of $0.55 per share were paid each quarter of 2016 and 2015. The declaration and payment of future dividends will be at the discretion of the Supervisory Board of Directors and will depend upon, among other things, future earnings, general financial condition, liquidity, capital requirements, and general business conditions. On January 10, 2017, the Company declared a cash dividend of $0.55 per share to be paid on February 17, 2017.

Because we are a holding company that conducts substantially all of our operations through subsidiaries, our ability to pay cash dividends on the common shares is also dependent upon the ability of our subsidiaries to pay cash dividends or otherwise distribute or advance funds to us and on the terms and conditions of our existing and future credit arrangements. See "Liquidity and Capital Resources" included in "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations."

Performance Graph

The following performance graph compares the performance of our common shares to the Standard & Poor's 500 Index and both the Standard & Poor's Oil & Gas Equipment and Services Index and the Philadelphia Oil Service Index ("OSX") for the period beginning December 31, 20112014 and ending December 31, 2016.2019. Core is using the OSX as our Peer Group to replace the Standard & Poor's Oil & Gas Equipment and Services Index used in prior years. CoreLab is now an established member of the OSX and has determined that this new indexwhich includes a greater concentration of our most direct peers.

The graph assumes that the value of the investment in our common shares and each index was $100 at December 31, 20112014 and that all dividends were reinvested. The stockholder return set forth below is not necessarily indicative of future performance. The following graph and related information is "furnished" and shall not be deemed "soliciting material" or to be "filed" with the SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of

1933 or the Securities Exchange Act of 1934, as amended (the "Exchange Act") except to the extent that Core Laboratories specifically incorporates it by reference into such filing.

Share Repurchases in the Fourth Quarter of 2016

2019

The following table provides information about our purchases of equity securities that are registered by us pursuant to Section 12 of the Exchange Act during the three months ended December 31, 2016:2019:

										Total Number Of
										Shares Purchased				Maximum Number
										As Part Of A				Of Shares That
										Publicly				May Be Purchased
		Total Number Of				Average Price				Announced				Under The
Period		Shares Purchased				Paid Per Share				Program				Program (3)(4)
October 1, 2019 to October 31, 2019 (1)			—				—				—				4,058,225
November 1, 2019 to November 30, 2019 (2)			347			$	46.58				—				4,058,885
December 1, 2019 to December 31, 2019 (2)			46,900			$	38.16				—				4,148,935
Total			47,247			$	38.22				—
(1)  No shares were repurchased during October, 2019.
(2)  All shares repurchased during November and December, 2019 were surrendered to us by participants in a stock-based              compensation plan to settle any personal tax liabilities which may result from the award.
(3) The maximum number of shares allowed to be purchased under the program was 4,058,225 at September 30, 2019.
(4)  During the quarter, 137,957 treasury shares were distributed relating to stock-based awards, including 1,007 in November,             and 136,950 in December.

Period		Total Number Of Shares Purchased			Average Price Paid Per Share		Total Number Of Shares Purchased As Part Of A Publicly Announced Program			Maximum Number Of Shares That May Be Purchased Under The Program (4)(5)
October 2016 (1)		3,582			$112.32		—			3,793,207
November 2016 (2)		147			$98.70		—			3,793,517
December 2016 (3)		23,312			$119.38		—			3,834,634
Total		27,041			$118.34		—

(1)	includes 3,582 shares valued at $0.4 million, or $112.32 per share, surrendered to us by participants in a stock-based compensation plan to settle any personal tax liabilities which may result from the award.

(2)	includes 147 shares valued at $14.5 thousand, or $98.70 per share, surrendered to us by participants in a stock-based compensation plan to settle any personal tax liabilities which may result from the award.

(3)	includes 23,312 shares valued at $2.8 million, or $119.38 per share, surrendered to us by participants in a stock-based compensation plan to settle any personal tax liabilities which may result from the award.

(4)	The maximum number of shares allowed to be purchased under the program was 3,783,489 at September 30, 2016.

(5)	During the quarter 78,186 treasury shares were distributed relating to stock-based awards, including 13,300 in October, 457 in November, and 64,429 in December.

In connection with our initial public offering in September 1995, our shareholders authorized our Management Board to repurchase up to 10% of our issued share capital, the maximum allowed under Dutch law at the time, for a period of 18 months. This authorization was renewed at subsequent annual or special shareholder meetings. At our annual shareholders' meeting on

May 19, 2016,23, 2019, our shareholders authorized an extension until November 19, 201723, 2020 to purchase up to 10% of our issued share capital. The repurchase of shares in the open market is at the discretion of management pursuant to this shareholder authorization.

From the activation of the share repurchase program through December 31, 2016,2019, we have repurchased 39,373,74539,689,999 shares for an aggregate purchase price of approximately $1.6$1.7 billion,, or an average price of $41.20$41.57 per share. At December 31, 2016,2019, we held 644,991330,690 shares in treasury and have the authority to repurchase 3,834,6344,148,935 additional shares under our stock repurchase program as described in the preceding paragraph.

ITEM 6. SELECTED FINANCIAL DATA

The selected consolidated financial information contained below is derived from our Consolidated Financial Statements and should be read in conjunction with "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" and our audited Consolidated Financial Statements each of which is included in this Form 10-K.

		For the Years Ended December 31,
		2019				2018				2017				2016				2015
		(in thousands, except per share and other data)
Financial Statement Data:
Revenue		$	668,210			$	700,846			$	647,819			$	590,232			$	782,069
Income from continuing operations			94,284				79,847				80,985				65,024				111,924
Working capital			109,643				128,430				106,851				82,438				117,789
Total assets (4)			774,673				648,827				584,812				573,052				625,258
Long-term debt and capital lease obligations, including    current maturities, net			305,283				289,770				226,989				216,488				430,987
Total equity (deficit)			182,140				160,900				148,732				155,297				(23,699	)
Earnings Per Share Information:
Income from continuing operations:
Basic		$	2.13			$	1.81			$	1.83			$	1.50			$	2.62
Diluted		$	2.11			$	1.80			$	1.83			$	1.49			$	2.61
Weighted average common shares outstanding:
Basic			44,357				44,206				44,153				43,479				42,747
Diluted			44,646				44,474				44,264				43,670				42,908
Cash dividends declared per common share		$	2.20			$	2.20			$	2.20			$	2.20			$	2.20
Other Data:
Current ratio (1)		2.01:1				2.25:1				2.06:1				1.79:1				1.98:1
Debt to EBITDA ratio (2)		2.47:1				1.97:1				1.59:1				1.79:1				2.24:1
Debt to Adjusted EBITDA ratio (3)		1.93:1				1.59:1				1.36:1				1.50:1				1.80:1
(1)  Current ratio is calculated as follows:  current assets divided by current liabilities.
(2)  Debt to EBITDA ratio is calculated as follows:  debt less cash divided by the sum of consolidated net income             plus interest, taxes, depreciation, and amortization.
(3)  Debt to Adjusted EBITDA ratio is calculated as follows:  debt less cash divided by the sum of consolidated net income             plus interest, taxes, depreciation, amortization, severance, and certain non-cash adjustments.
(4)  The adoption of ASC Topic 842 - Accounting for Leases on January 1, 2019 resulted in an increase of             $77.5 million to total assets

		For the Years Ended December 31,
		2016				2015				2014				2013				2012
		(in thousands, except per share and other data)
Financial Statement Data:
Revenue		$	594,741			$	797,520			$	1,085,222			$	1,073,508			$	981,080
Net income attributable to Core Laboratories N.V.		63,895				114,847				257,485				242,811				216,071
Working capital		82,438				117,789				169,954				168,093				156,397
Total assets		573,052				625,258				673,325				659,364				634,391
Long-term debt and capital lease obligations, including current maturities		216,488				430,987				353,672				265,382				231,948
Total equity (deficit)		155,297				(23,699		)		93,993				169,389				187,913
Earnings Per Share Information:
Net income attributable to Core Laboratories N.V.:
Basic		$	1.47			$	2.69			$	5.80			$	5.31			$	4.58
Diluted		$	1.46			$	2.68			$	5.77			$	5.28			$	4.54
Weighted average common shares outstanding:
Basic		43,479				42,747				44,362				45,692				47,211
Diluted		43,670				42,908				44,600				45,994				47,553
Cash dividends declared per common share		$	2.20			$	2.20			$	2.00			$	1.28			$	1.12
Other Data:
Current ratio (1)		1.79:1				1.98:1				2.29:1				2.24:1				2.11:1
Debt to EBITDA ratio (2)		1.80:1				2.13:1				0.89:1				0.67:1				0.67:1
Debt to Adjusted EBITDA ratio (3)		1.50:1				1.94:1				0.89:1				0.67:1				0.67:1
(1) Current ratio is calculated as follows: current assets divided by current liabilities.
(2) Debt to EBITDA ratio is calculated as follows: gross debt less cash divided by the sum of net income plus interest, taxes, depreciation, and amortization.
(3) Debt to Adjusted EBITDA ratio is calculated as follows: gross debt less cash divided by the sum of net income plus interest, taxes, depreciation, amortization, severance, and certain non-cash adjustments.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATION

OPERATIONS

Core Laboratories N.V. is a Netherlands limited liability company. We were established in 1936 and are one of the world's leading providers of proprietary and patented reservoir description and production enhancement and reservoir management services and products to the oil and gas industry, primarily through client relationships with many of the world's major, national and independent oil companies.

We operate our business in three reportabletwo reporting segments. These complementary segments provide different services and products and utilize different technologies for improving reservoir performance and increasing oil and gas recovery from new and existing fields.fields:

•

Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples to increase production and improve recovery of oil and gas from our clients' reservoirs. We provide laboratory-based analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry. We also provide proprietary and joint industry studies based on these types of analyses.

Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

•

Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated diagnostic services to evaluate and monitor the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated diagnostic services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

General Overview

We provide services andas well as design and produce products which enable our clients to evaluate reservoir performance and increase oil and gas recovery from new and existing fields. These services and products are generally in higher demand when our clients are investing capital in their field development programs that are designed to increase productivity from existing fields or when exploring for new fields. Our clients' investment in capital expenditure programs tends to correlate over the longer term to oil and natural gas commodity prices. During periods of higher, stable prices, our clients generally invest more in capital expenditures and, during periods of lower or volatile commodity prices, they tend to invest less. Consequently, the level of capital expenditures by our clients impacts the demand for our services and products.

The following table summarizes the annual average and year-end worldwide and U.S. rig counts for the years ended December 31, 2016, 20152019, 2018 and 2014,2017, as well as the annual average and year-end spot price of a barrel of WTI crude, Europe Brent crude and an MMBtu of natural gas:

		2019				2018				2017
Baker Hughes Worldwide Average Rig Count (1)			2,177				2,211				2,029
Baker Hughes U.S. Average Rig Count (1)			944				1,032				875
Baker Hughes Worldwide Year-End Rig Count (2)			2,043				2,244				2,089
Baker Hughes U.S. Year-End Rig Count (2)			804				1,078				930
Average Crude Oil Price per Barrel WTI (3)		$	56.98			$	65.23			$	50.80
Average Crude Oil Price per Barrel Brent (4)		$	64.28			$	71.34			$	54.12
Average Natural Gas Price per MMBtu (5)		$	2.56			$	3.15			$	2.99
Year-end Crude Oil Price per Barrel WTI (3)		$	61.14			$	45.15			$	60.46
Year-end Crude Oil Price per Barrel Brent (4)		$	67.77			$	50.57			$	66.73
Year-end Natural Gas Price per MMBtu (5)		$	2.09			$	3.25			$	3.69
(1)  Twelve month average rig count as reported by Baker Hughes - Worldwide Rig Count.
(2)  Year-end rig count as reported by Baker Hughes - Worldwide Rig Count.
(3)  Average daily and year-end West Texas Intermediate crude spot price as reported by the U.S. Energy             Information Administration.
(4)  Average daily and year-end Europe Brent crude spot price as reported by the U.S. Energy Information             Administration.
(5)  Average daily and year-end Henry Hub natural gas spot price as reported by the U.S. Energy Information             Administration.

	2016				2015				2014
Baker Hughes Worldwide Average Rig Count (1)	1,593				2,337				3,578
Baker Hughes U.S. Average Rig Count (1)	510				977				1,862
Baker Hughes Worldwide Year-End Rig Count (2)	1,772				1,969				3,570
Baker Hughes U.S. Year-End Rig Count (2)	634				714				1,882
Average Crude Oil Price per Barrel WTI (3)	$	43.29			$	48.68			$	93.17
Average Crude Oil Price per Barrel Brent (4)	$	43.67			$	52.30			$	98.97
Average Natural Gas Price per MMBtu (5)	$	2.52			$	2.62			$	4.37
Year-end Crude Oil Price per Barrel WTI (3)	$	53.75			$	37.13			$	53.45
Year-end Crude Oil Price per Barrel Brent (4)	$	54.96			$	36.61			$	55.27
Year-end Natural Gas Price per MMBtu (5)	$	3.71			$	2.28			$	3.14
(1) Twelve month average rig count as reported by Baker Hughes Incorporated - Worldwide Rig Count.
(2) Year-end rig count as reported by Baker Hughes Incorporated - Worldwide Rig Count.
(3) Average daily and year-end West Texas Intermediate crude spot price as reported by the U.S. Energy Information Administration.
(4) Average daily and year-end Europe Brent crude spot price as reported by the U.S. Energy Information Administration.
(5) Average daily and year-end Henry Hub natural gas spot price as reported by the U.S. Energy Information Administration.

The prices for both WTI and Brent crude oil beganshowed improvement during 2017 and continued to weaken afterstrengthen through most of 2018; however, they decreased significantly during the OPEC meeting held in November 2014. Averagelast quarter of 2018. In 2019, crude-oil prices forimproved during the majorityfirst few months, and became more stable during the second half of the 2014 calendar year were in excess of $99 per barrel for WTI and in excess of $105 per barrel for

Brent; however, both were down to approximately $55 per barrel by theyear. The end of 2014 and less than $40 per barrel by the end of 2015. The volatility and significant reduction inresult was the average price for crude oil in 2019 was approximately 10% lower than the average price for 2018. In general, activities associated with the exploration of oil and gas in the U.S. onshore market are more sensitive to changes in the crude-oil commodity prices, as opposed to larger international and offshore projects which take multiple years to plan and develop, and once announced and started, will continue through completion, despite changes in the current price of crude oil during 2015oil. The improvement in crude-oil prices in 2017 and 2016 resulted

most of 2018 led to elevated levels in a significant decrease in theU.S. onshore activities associated with both the exploration and production of oilcrude oil. Additionally, during 2015this time period, public announcements of investments in larger international and throughout mostoffshore projects were elevated and activity levels began to improve in 2018 and continued to improve into 2019. However, the continued volatility and lower level of 2016. Althoughcrude-oil prices in the average pricelast quarter of oil2018 and gasduring 2019 did negatively impact the activity levels in the U.S. onshore market which decreased in 2016, prices showed2019. Information published by the U.S. Energy Information Administration (“EIA”), shows that the inventory of wells drilled but uncompleted (a “DUC” well) was 6,566 as of December 31, 2017, increasing to a peak in February 2019 at approximately 8,500, and ending 2019 at 7,573. This data indicates that during the period of higher activity in 2018, operators were drilling wells but not completing them as the DUC inventory grew. However, as activity levels began to fall in late 2018 and into 2019, and operators began to drill fewer new wells, they were also completing some signs of improvementthe wells that had been previously drilled, which is reflected in the second half of 2016.

lower DUC inventory at December 2019.

In North America, the land-based rig count decreased 62%increased 45% during 20152017 and another 53%19% during the first half of 2016,2018, which greatly impactedhad a positive impact for both services and product sales to this market. Although the second half of 2016 showed an improvementmarket over this time period. The build in North American activity with the average rig count slowly, but steadily, increasing, the rig count at the end of 2016 remained almost 20% below 2015 levels. We saw resilient levels of activities on development projects and producing fields in the U.S. unconventional reservoirs during 2017 continued to strengthen during most of 2018, until October 2018 when the second half of 2016commodity price weakened significantly and expectactivity levels decreased. The lower commodity prices in 2019 led to see further increasesa 10% decrease in activity during the recovery phase of this business cycle.

annual average land-based rig count and a decline in U.S. based activities in 2019.

Outside of North America, activities associated with the exploration for and production of oil dropped to current lower levels during the industry downturn which began at the end of 2014. Although activities have also decreased from 2014 levels, although not as significantly as the land-based activities in North America. Our clients' activities in the international and deepwater markets declined during 2015 and 2016, butyet increased, we believe these markets will begin to showhave shown signs of recovery beginning in the second half of 2017for 2020 and beyond as our clients have recently announced several new major capital projects.

investment projects throughout 2017, 2018 and 2019.

Results of Operations

Operating Results for the Year Ended December 31, 20162019 Compared to the Years Ended December 31, 20152018 and 2014

2017

We evaluate our operating results by analyzing revenue, operating income and netoperating income margin (defined as netoperating income divided by total revenue). Since we have a relatively fixed cost structure, increasesdecreases in revenue generally translate into higherlower operating income results as well as net income margin percentages.results. Results for the years ended December 31, 2016, 20152019, 2018 and 20142017 are summarized in the following chart:

            

Results of operations as a percentage of applicable revenue for the years ended December 31, 2019, 2018 and 2017 are as follows (dollars in thousands)(in thousands, except for per share information):

																										2019 / 2018				2018 / 2017
Revenue:		2019								2018								2017								% Change
Services		$	474,193				71.0	%		$	486,820				69.5	%		$	480,264				74.1	%			(2.6	)%			1.4	%
Product Sales			194,017				29.0	%			214,026				30.5	%			167,555				25.9	%			(9.3	)%			27.7	%
TOTAL REVENUE			668,210				100.0	%			700,846				100.0	%			647,819				100.0	%			(4.7	)%			8.2	%
OPERATING EXPENSES:															��
Cost of services* (1)			345,641				72.9	%			343,833				70.6	%			333,365				69.4	%			0.5	%			3.1	%
Cost of product sales* (1)			149,938				77.3	%			153,131				71.5	%			131,593				78.5	%			(2.1	)%			16.4	%
Total cost of services and product    sales			495,579				74.2	%			496,964				70.9	%			464,958				71.8	%			(0.3	)%			6.9	%
General and administrative expenses (1)			48,023				7.2	%			62,910				9.0	%			47,737				7.4	%			(23.7	)%			31.8	%
Depreciation and amortization			22,605				3.4	%			23,087				3.3	%			24,524				3.8	%			(2.1	)%			(5.9	)%
Other (income) expense, net			5,319				0.8	%			(737	)			(0.1	)%			632				0.1	%		NM				NM
OPERATING INCOME			96,684				14.5	%			118,622				16.9	%			109,968				17.0	%			(18.5	)%			7.9	%
Interest expense			14,690				2.2	%			13,328				1.9	%			10,734				1.7	%			10.2	%			24.2	%
Income before income tax expense			81,994				12.3	%			105,294				15.0	%			99,234				15.3	%			(22.1	)%			6.1	%
Income tax expense (benefit)			(12,290	)			(1.8	)%			25,447				3.6	%			18,249				2.8	%		NM					39.4	%
Income from continuing operations			94,284				14.1	%			79,847				11.4	%			80,985				12.5	%			18.1	%			(1.4	)%
Income (loss) from discontinued      operations			7,833				1.2	%			(58	)			—				2,111				0.3	%		NM				NM
Net income			102,117				15.3	%			79,789				11.4	%			83,096				12.8	%			28.0	%			(4.0	)%
Net income (loss) attributable to      non-controlling interest			134				—				263				—				(29	)			—			NM				NM
Net income attributable to      Core Laboratories N.V.		$	101,983				15.3	%		$	79,526				11.3	%		$	83,125				12.8	%			28.2	%			(4.3	)%
Diluted earnings per share from      continuing operations		$	2.11							$	1.80							$	1.83								17.2	%			(1.6	)%
Diluted earnings per share    attributable to Core    Laboratories N.V.		$	2.28							$	1.79							$	1.88								27.4	%			(4.8	)%
Diluted weighted average common    shares outstanding			44,646								44,474								44,264
* Percentage based on applicable revenue rather than total revenue.
"NM" means not meaningful.
(1)  Excludes depreciation.

	2016						2015						2014						2016 / 2015		2015 / 2014
Revenue:																			% Change
Services	$	470,259		79.1	%		$	611,954		76.7	%		$	780,872		72.0	%		(23.2	)%	(21.6	)%
Product Sales	124,482			20.9	%		185,566			23.3	%		304,350			28.0	%		(32.9	)%	(39.0	)%
TOTAL REVENUE	594,741			100.0	%		797,520			100.0	%		1,085,222			100.0	%		(25.4	)%	(26.5	)%
OPERATING EXPENSES:
Cost of services* (1)	331,688			70.5	%		387,739			63.4	%		449,488			57.6	%		(14.5	)%	(13.7	)%
Cost of product sales* (1)	110,956			89.1	%		144,913			78.1	%		215,783			70.9	%		(23.4	)%	(32.8	)%
Total cost of services and product sales	442,644			74.4	%		532,652			66.8	%		665,271			61.3	%		(16.9	)%	(19.9	)%
General and administrative expenses (1)	39,390			6.6	%		49,729			6.2	%		45,655			4.2	%		(20.8	)%	8.9	%
Depreciation and amortization	26,872			4.5	%		27,457			3.4	%		26,696			2.5	%		(2.1	)%	2.9	%
Other (income) expense, net	(344		)	(0.1	)%		3,669			0.5	%		1,069			0.1	%		NM		NM
Severance and other charges	—			—	%		22,943			2.9	%		—			—	%		NM		NM
OPERATING INCOME	86,179			14.5	%		161,070			20.2	%		346,531			31.9	%		(46.5	)%	(53.5	)%
Interest expense	11,572			1.9	%		12,380			1.6	%		10,600			1.0	%		(6.5	)%	16.8	%
Income before income tax expense	74,607			12.5	%		148,690			18.6	%		335,931			31.0	%		(49.8	)%	(55.7	)%
Income tax expense	10,748			1.8	%		33,758			4.2	%		77,305			7.1	%		(68.2	)%	(56.3	)%
Net income	63,859			10.7	%		114,932			14.4	%		258,626			23.8	%		(44.4	)%	(55.6	)%
Net income attributable to non-controlling interest	(36		)	—	%		85			—	%		1,141			0.1	%		NM		NM
Net income attributable to Core Laboratories N.V.	$	63,895		10.7	%		$	114,847		14.4	%		$	257,485		23.7	%		(44.4	)%	(55.4	)%
Diluted earnings per share attributable to Core Laboratories N.V.	$	1.46					$	2.68					$	5.77					(45.5	)%	(53.6	)%
Diluted weighted average common shares outstanding	43,670						42,908						44,600
*Percentage based on applicable revenue rather than total revenue.
"NM" means not meaningful.
(1) Excludes depreciation.

Services Revenue

Services revenue, decreasedwhich is primarily tied to$470.3 million for 2016 from $612.0 million for 2015 and $780.9 million for 2014. The volatility and downward trend in the average price of crude oil during 2015 and 2016 resulted in a significant decrease in the activities associated with both the exploration and production of oil since 2014. Averageand gas outside the U.S., decreased to $474.2 million in 2019 from $486.8 million in 2018 and $480.3 million in 2017. Crude-oil prices for WTI and Brent crude oil continued to decreasestrengthened throughout 2018 until the fourth quarter, when they dropped approximately 40% by year end. Although crude-oil prices partially rebounded in 2016 from the almost 50% decline in 2015. As a result,2019, the average global rig count fell an additional 32%price in 2016 after2019 was still 10% lower than the declineaverage price of 35%2018. This resulted in 2015, primarily drivendecreased activity by decreasesour clients leading to lower service revenue in the North American rig count.America onshore market during 2019 compared to 2018. However, over this same time period, our service revenue was down only 23%improvement in the level of work performed for offshore and 22%international exploration and production projects has partially offset some of the decline in 2016the U.S. market, which provides a more positive outlook and 2015, respectively,support for larger and longer-term projects.

We continue to focus on large-scale core analyses and reservoir fluids characterization studies in the Eagle Ford, the Permian Basin and the Gulf of Mexico, along with Guyana, Malaysia and other international locations such as demand for our analytical, diagnostic,offshore South America,

Australia, and completion services was less impacted by the significant decrease in drilling activities. AlthoughMiddle East, including Kuwait and the United Arab Emirates. Analysis of crude oil prices showed some slight improvementderived products also occurs in late 2016, prices remained depressed and unstable for most of 2016, resulting in a decrease in our clients' international and deepwater activities. Wells must be drilled and/or completed, stimulated, cored and have reservoir fluid samples collected, before we see the benefitsevery major producing region of the increased commodity prices. Our continued focus on worldwide crude oil related and large natural gas liquefaction projects, especially those related to the development of deepwater fields off West and East Africa and the eastern Mediterranean, prevented services revenue from declining further.

world.

Product Sales Revenue

Product sales revenue, which is primarily tied more to demandthe completion of onshore wells in North America, decreased to $124.5 million for 2016, from $185.6 million for 2015 and $304.4was $194.0 million in 2014. Although average2019, a decrease from $214.0 million in 2018, but an increase from $167.6 million in 2017. Rig count is one indicator of activity levels associated with the exploration and production of oil and gas. The rig count for the U.S. and Canada declined 48% during 2016 comparedNorth America decreased from 2018 to 2015, our product2019 by 12%, but increased 13% from 2017 to 2018. Our products sales revenue decreased only 33% during this same time period. The average rig count for9% from 2018 to 2019 and increased 28% from 2017 to 2018, which outperformed the U.S. and Canada declined 48% during 2015 as compared to 2014, however, our product sales revenue decreased only 39% during this time period. These results wereindustry activity in North America primarily due to our differentiated well completion product sales holding up better than the industry activity levels in North America.

products.

Cost of Services, excluding depreciation

Cost of services decreasedincreased to $331.7$345.6 million for 2016 from $387.7 in 2019 compared to $343.8 million for 2015 in 2018 and $449.5$333.4 million for 2014. in 2017. As a percentage of services revenue, cost of services increased to 71%73% in 20162019, from 63%71% in 20152018 and 58%69% in 2014. These increases are2017. The increase in cost of services during each period was primarily due to compensation and related charges. Cost of services expressed as a percentage of services revenue is primarily reflective of how our fixed-cost structure not being fully absorbed on lower revenues in 2016 when compared to 2015 and in 2015 when compared to 2014. We took actions to reduce ourfixed cost structure in response to the sharp decline in global activity during 2015. See section "Severance and Other Charges" below.

is absorbed by revenue.

Cost of Product Sales, excluding depreciation

Cost of product sales of $150.0 million in 2019 decreased to $111.0from $153.1 million for 2016 in 2018 but increased from $144.9$131.6 million for 2015 and $215.8 million for 2014. in 2017. As a percentage of product sales revenue, cost of sales increased to 89%77% for 20162019 from 78%72% for 2015 and 71%2018 but was improved from 79% for 2014. These increases are2017. Cost of product sales expressed as a percentage of product sales revenue is primarily due toreflective of how our fixed-cost structure not being fully absorbed on lower revenues in 2016 when compared to 2015 and in 2015 when compared to 2014. We took actions to reduce ourfixed cost structure in response to the sharp decline in global activity during 2015. See section "Severance and Other Charges" below.

is absorbed by revenue.

General and Administrative Expense,

excluding depreciation

General and administrative ("G&A") expenses include corporate management and centralized administrative services that benefit our operations. G&A expenses were $39.4$48.0 million for 2016 in 2019 compared to $49.7$62.9 million and $45.7$47.7 million during 20152018 and 2014,2017, respectively. The variances are primarily due to reduced staffchanges in compensation expense during those periods, including accelerated stock compensation expense of $7.2 million in 2019 and lower compensation expense.

$9.9 million in 2018 recorded for retirement eligible employees. See Note 15 - Stock-Based Compensation for further detail.

Depreciation and Amortization Expense

Depreciation and amortization expense of $26.9$22.6 million in 2016 decreased slightly2019 is down compared to $27.5$23.1 million in 2015 but was comparable to $26.72018 and $24.5 million in 2014.

2017.

Other (Income) Expense, net

The components of Other (income) expense, net, for the years ended December 31, 2019, 2018 and 2017 were as follows (in thousands):

		2019				2018				2017
Sale of assets		$	(583	)		$	(1,078	)		$	(346	)
Results of non-consolidated subsidiaries			(208	)			(203	)			(332	)
Foreign exchange			1,725				2,598				951
Rents and royalties			(607	)			(510	)			(454	)
Employment related charges			2,998				—				—
Return on pension assets and other pension costs			(1,501	)			(644	)			(587	)
Acquisition-related costs			—				623				—
Gain on sale of business			(1,154	)			—				—
Insurance settlement			—				(707	)			—
Cost reduction and other charges			5,555				—				1,145
Other, net			(906	)			(816	)			255
Total Other (income) expense, net		$	5,319			$	(737	)		$	632

			For the Years Ended December 31,
			2016				2015				2014
Sale of assets			$	(618	)		$	(408	)		$	(764	)
Results of non-consolidated subsidiaries			(506		)		(383		)		(364		)
Foreign exchange			1,832				4,507				4,230
Interest income			—				(56		)		(403		)
Rents and royalties			(420		)		(484		)		(817		)
Insurance and other settlements			—				—				(292		)
Other, net			(630		)		493				(521		)
Total Other (income) expense, net			$	(342	)		$	3,669			$	1,069

Foreign exchange gains and losses for the years ended December 31, 2019, 2018 and 2017 are summarized in the following table (in thousands):

(Gains) losses by currency		2019				2018				2017
Australian Dollar		$	158			$	183			$	12
British Pound			599				158				(92	)
Canadian Dollar			489				458				(62	)
Euro			469				208				1,413
Other currencies, net			10				1,591				(320	)
Total (gain) loss, net		$	1,725			$	2,598			$	951

		For the Years Ended December 31,
(Gains) losses by currency		2016				2015				2014
	Australian Dollar	$	136			$	238			$	289
	British Pound	807				434				1,132
	Canadian Dollar	(137		)		1,848				1,886
	Euro	(49		)		(908		)		(1,537		)
	Malaysian Ringgit	43				545				278
	Mexican Peso	(47		)		414				284
	Nigerian Naira	200				630				432
	Other currencies, net	879				1,306				1,466
Total (gain) loss, net		$	1,832			$	4,507			$	4,230

Severance and Other Charges

In 2015, in response to lower commodity pricing for crude oil and reduced spending by our clients on their oil and gas fields, we reduced our cost structure, primarily through a reduction in our workforce, to better align with the decreasing activity levels into the foreseeable future. As a result of these cost reductions, we recorded severance charges of $8.8 million, of which approximately $0.5 million were accrued and remaining to be paid at December 31, 2016. Additionally, in 2015 the Company recorded a charge to income associated with the impairment of certain equipment and intangible assets and facility exit costs of $5.5 million. Also during 2015, we recorded loss contingencies for various ongoing legal issues of $8.6 million. See Note 11 of the Notes to Consolidated Financial Statements.

Interest Expense

Interest expense decreasedincreased by $0.8$1.4 million to $11.6$14.7 million in 20162019 compared to 20152018 primarily due to decreasedincreased average borrowings on our revolving Credit Facility.

Facility which were used to fund an acquisition for $48.9 million in September 2018.

Income Tax Expense

Our effective tax rate was 14.4%(15)%, 22.7%24.2%, and 23.0%18.4% for 2016, 2015,2019, 2018 and 2014,2017, respectively. Income tax expensebenefit of $10.7$12.3 million in 20162019 decreased by $23.0$37.8 million compared to $33.8$25.4 million expense in 20152018 due to a decrease in taxable income in 2016, primarily in the United States. Income tax expense associated with taxable incomebenefit of $60.7 million recognized in the United States decreased2019 related to corporate restructuring which was partially offset by $16.1a charge of $26.7 million in 2016 comparedrelated to 2015. No other jurisdiction in whichunremitted earnings of foreign subsidiaries that we operate had a material change in income tax expense.

no longer consider to be indefinitely reinvested.

See Note 911 - Income Taxes of the Notes to the Consolidated Financial Statements for further detail of income tax expense.

Segment Analysis

The following charts and tables summarize the annual revenue and operating results for our threetwo complementary business segments.

Segment Revenue

Segment Revenue

		For the Years Ended December 31,
(dollars in thousands)		2019				% Change			2018				% Change			2017
Reservoir Description		$	420,897			1.9%			$	413,082			(0.5)%			$	415,220
Production Enhancement			247,313			(14.1)%				287,764			23.7%				232,599
Total Revenue		$	668,210			(4.7)%			$	700,846			8.2%			$	647,819

Segment Revenue

		For the Years Ended December 31,
(dollars in thousands)		2016				% Change			2015				% Change			2014
Reservoir Description		$	404,146			(14.6	)%		$	473,372			(8.8	)%		$	518,974
Production Enhancement		164,027				(38.6	)%		267,224				(42.8	)%		467,577
Reservoir Management		26,568				(53.3	)%		56,924				(42.3	)%		98,671
	Total Revenue	$	594,741			(25.4	)%		$	797,520			(26.5	)%		$	1,085,222

Segment Operating Income

		For the Years Ended December 31,
(dollars in thousands)		2019				% Change			2018				% Change			2017
Reservoir Description		$	55,140			0.5%			$	54,847			(17.5)%			$	66,500
Production Enhancement			38,378			(39.1)%				63,039			43.3%				43,987
Corporate and other (1)			3,166			NM				736			NM				(519)
Operating Income		$	96,684			(18.5)%			$	118,622			7.9%			$	109,968
(1) "Corporate and other" represents those items that are not directly relating to a particular segment.
"NM" means not meaningful.

	For the Years Ended December 31,
(dollars in thousands)	2016				% Change			2015				% Change			2014
Reservoir Description	$	75,148			(32.3	)%		$	111,032			(22.7	)%		$	143,624
Production Enhancement	8,891				(74.6	)%		35,027				(78.8	)%		165,204
Reservoir Management	2,043				(86.9	)%		15,655				(57.9	)%		37,220
Corporate and other (1)	97				NM			(644		)		NM			483
Operating Income	$	86,179			(46.5	)%		$	161,070			(53.5	)%		$	346,531
(1)  “Corporate and other" represents those items that are not directly relating to a particular segment.
"NM" means not meaningful.

Segment Operating Income Margins ⁽¹⁾

		For the Years Ended December 31,
		2019			2018			2017
		Margin			Margin			Margin
Reservoir Description		13.1%			13.3%			16.0%
Production Enhancement		15.5%			21.9%			18.9%
Total Company		14.5%			16.9%			17.0%
(1) Calculated by dividing "Operating Income" by "Revenue".

	For the Years Ended December 31,
	2016				2015				2014
	Margin				Margin				Margin
Reservoir Description	18.6	%			23.5	%			27.7	%
Production Enhancement	5.4	%			13.1	%			35.3	%
Reservoir Management	7.7	%			27.5	%			37.7	%
Total Company	14.5	%			20.2	%			31.9	%
(1)  Calculated by dividing "Operating Income" by "Revenue."

Reservoir Description

Revenue for our Reservoir Description segment decreasedincreased to $404.1$420.9 million in 20162019 compared to $473.4$413.1 million in 20152018 and $519.0$415.2 million in 2014. The decrease in revenues in 2016 was primarily due2017. Reservoir Description’s operations are heavily exposed to the reduced international and deepwater drillingoffshore project activity levels. The decrease in revenues in 2015 was primarily due to the strengtheninglevels, with approximately 80% of its revenue sourced outside the U.S. dollar against certain currencies such asImprovement in year-over-year financial performance in this segment is a result of increased international and offshore client activity which was partially offset by the Euro, Australian dollar, Canadian dollar, British pound, and Russian ruble, in which we invoice a portionsale of our revenue. This segment's operations continue to work on large-scale, long-term, crude-oil and LNG projects with an emphasis on producing fieldsbusinesses, located in offshore developmentsthe Asia-Pacific and international markets.South America regions, during 2019. We continue to focus on large-scale core analyses and reservoir fluids characterization studies in the Asia-Pacific areas, offshore WestEurope and East Africa, the eastern Mediterranean regionoffshore South America, North America, and the Middle East, including Kuwaitas well as both newly developed fields and brownfield extensions in offshore areas such as Australia, Brazil, Guyana, the Gulf of Mexico, the Middle East and the United Arab Emirates.

North Sea. Analysis of crude oil derived products also occurs in every major producing region of the world.

Operating income increased to $55.1 million in 2019 from $54.8 million in 2018 primarily due to improved activity levels derived from large capital spending projects in international markets. However, the improved operating income for 2019 was, partially offset by additional expenses associated with employee severance and other cost reduction initiatives of $4.0 million. Included in both 2019 and 2018 are additional stock compensation expense of $4.7 million in 2019 for retirement eligible employees compared to $6.3 million in 2018. See Note 15 - Stock-Based Compensation for further detail. Operating income decreased to $75.1$54.8 million in 20162018 from $111.0$66.5 million in 2015 and $143.6 million in 2014. The decreases in operating income in 2016 and 2015 as compared to each corresponding prior year were2017, primarily due to lower activity levels. Operating incomelevels in 2015 includesinternational markets and additional chargesstock compensation expense of $6.3 million recorded in 2018 for severance, asset impairments, and an accrual for contingent losses.retirement eligible employees. Operating margins, excluding the severance, other cost reduction expenses and the additional stock compensation expense recorded in 2019 and 2018 were 18.6%comparable at 15.3% in 2016 down from 23.5%2019 and 14.8% in 20152018 and 27.7%16.0% in 2014.

2017.

Production Enhancement

Revenue for our Production Enhancement segment decreased to $164.0of $247.3 million in 20162019 decreased compared to $267.2$287.8 million in 20152018 and $467.6increased compared to $232.6 million in 2014. The decreases2017. Although the U.S. land-based client activity increased for the first three quarters of 2018, the significant decrease in North America industry activity during 2016 and 2015, when compared to the respective prior year, reduced demand for our products associated with land-based completioncrude-oil commodity price in the fourth quarter of oil wells2018 resulted in U.S. unconventional developments. The revenuea sharp decrease of 43%drilling and well completion activities in 2015 comparedthe U.S. onshore market. This lower level of drilling and completion activity continued into 2019. However, our clients continue to 2014 was less thanseek technological solutions for increasing daily production and estimated ultimate recoveries from their reservoirs and we continue to benefit from our clients’ acceptance of new services and products which were led by the HERO^® PerFRAC, GoGun^TM, FLOWPROFILER EDS^TM and ReFRAC technologies.

Operating income for Production Enhancement segment of $38.4 million in 2019 decreased from $63.0 million in 2018 and $44.0 million in 2017, primarily due to the decrease in the U.S. horizontal rig count of 62% during 2015.

onshore activity. Operating income in 2019 and 2018 was also negatively impacted by severance and cost reduction expenses of $1.5 million, additional stock compensation expense of $2.5 million recorded in 2019 for this segment decreased to $8.9retirement eligible employees, and $3.7 million additional stock compensation expense recorded in 2016 from $35.0 million in 2015 and $165.2 million in 2014.2018. See Note 15 - Stock-Based Compensation for further detail. Operating margins, excluding the employee severance, other cost reduction expenses and the additional stock compensation expenses recorded in 2019 and 2018, were 5.4%17.2% in 20162019 down from 13.1%23.2% in 20152018 and 35.3%18.9% in 2014. The decreases in operating income and operating margin in 2016 and 2015 compared to the respective prior year were primarily due to decreased revenue and the impact of our fixed-cost structure on lower revenue in these years.

2017.

Reservoir Management

Revenue for our Reservoir Management segment decreased to $26.6 million in 2016 compared to $56.9 million in 2015 and $98.7 million in 2014. The decrease in revenue in 2016 compared to 2015 was primarily due to lower oil commodity prices which, as a result, greatly reduced or eliminated discretionary spending by our oil and gas clients. Our clients continue to express interest in our existing multi-client reservoir studies such as the Avalon Basin study and the Tight Oil Reservoirs of the Midland Basin study, both within the larger area of the Permian Basin acreage, as well as our new joint-industry projects in the Mississippian-aged Meramac and Osage formations, which overlay the Silurian-aged Woodford Formation in the STACK-B play, which includes Blaine County.

Operating income for this segment decreased to $2.0 million in 2016 compared to $15.7 million in 2015 and $37.2 million in 2014. Operating margins decreased to 7.7% in 2016, from 27.5% and 37.7% in 2015 and 2014, respectively. The decrease in operating income in 2016 compared to 2015 and 2014 was due primarily to decreased revenue and the impact of our fixed costs over lower revenue. We are still focused on our current joint industry projects, including the Utica, Duvernay, and Mississippi Lime studies and the Marcellus, Niobrara, Wolfcamp and Eagle Ford plays, our new proposed studies in tight-oil unconventional reservoirs and a revisit to the deepwater Gulf of Mexico, and the sale of fully completed studies.

Liquidity and Capital Resources

General

We have historically financed our activities through cash on hand, cash flows from operations, bank credit facilities, equity financing and the issuance of debt. Cash flows from operating activities providesprovide the primary source of funds to finance operating needs, capital expenditures and our dividend and share repurchase programs. If necessary, we supplement this cash flow with borrowings under bank credit facilities to finance some capital expenditures and business acquisitions. As we are a Netherlands holding company, we conduct substantially all of our operations through subsidiaries. Our cash availability is largely dependent upon the ability of our subsidiaries to pay cash dividends or otherwise distribute or advance funds to us.us and on the terms and conditions of our existing and future credit arrangements. There are no restrictions preventing any of our subsidiaries from repatriating earnings, and there are no restrictions or income taxes associated with distributing cash to the parent company through loans or advances. As of December 31, 2016, approximately $13.72019, $8.9 million of our $14.8$11.1 million of cash was held by our foreign subsidiaries.

subsidiaries, including the U.S.

Our financial statements are prepared in conformity with generally accepted accounting principles in the U.S. ("U.S. GAAP" or "GAAP"). We utilize the non-GAAP financial measure of free cash flow to evaluate our cash flows and results of operations. Free cash flow is defined as net cash provided by operating activities (which is the most directly comparable GAAP measure) less cash paid for capital expenditures. Management believes that free cash flow provides useful information to investors regarding the cash that was available in the period that was in excess of our needs to fund our capital expenditures and operating activities. Free cash flow is not a measure of operating performance under GAAP, and should not be considered in isolation nor construed as an alternative to operating profit, net income (loss) or cash flows from operating, investing or financing activities, each as determined in accordance with GAAP. Free cash flow does not represent residual cash available for distribution because we may have other non-discretionary expenditures that are not deducted from the measure. Moreover, since free cash flow is not a measure determined in accordance with GAAP and thus is susceptible to varying interpretations and calculations, free cash flow, as presented, may not be comparable to similarly titled measures presented by other companies. The following table reconciles this non-GAAP financial measure to the most directly comparable measure calculated and presented in accordance with U.S. GAAP for the years ended December 31, 2016, 20152019, 2018 and 20142017 (in thousands):

		For the Years Ended December 31,
Free Cash Flow Calculation		2019				2018				2017
Net cash provided by operating activities		$	89,527			$	111,827			$	124,271
Less: cash paid for capital expenditures			(22,269	)			(21,741	)			(18,775	)
Free cash flow		$	67,258			$	90,086			$	105,496

	For the Years Ended December 31,
Free Cash Flow Calculation	2016				2015				2014
Net cash provided by operating activities	$	131,887			$	219,100			$	303,449
Less: cash paid for capital expenditures	(11,356		)		(22,797		)		(36,586		)
Free cash flow	$	120,531			$	196,303			$	266,863

Free cash flow as a percent of net income continued to be strong even though

The decrease in free cash flow decreased in 20162019 compared to 2015 and 2014. These decreases were2018 was primarily dueattributable to thea decrease in cash generated from operations in 2019, and an increase in working capital also contributed to lower free cash flow from operating activities asfor 2019. The decrease in free cash flow in 2018 compared to 2017 was primarily associated with increases in working capital, which was impacted by an acquisition in September 2018 and a result of lower activity levels for the oil and gas industry.

slight increase in capital expenditures in 2018.

Cash Flows

The following table summarizes cash flows for the years ended December 31, 2016, 20152019, 2018 and 20142017 (in thousands):

		2019				2018				2017
Cash provided by/(used in):
Operating activities		$	89,527			$	111,827			$	124,271
Investing activities			(5,677	)			(70,639	)			(20,557	)
Financing activities			(85,874	)			(42,472	)			(104,078	)
Net change in cash and cash equivalents		$	(2,024	)		$	(1,284	)		$	(364	)

	For the Years Ended December 31,
	2016				2015				2014
Cash provided by/(used in):
Operating activities	$	131,887			$	219,100			$	303,449
Investing activities	(14,721		)		(39,654		)		(42,066		)
Financing activities	(124,896		)		(180,302		)		(263,121		)
Net change in cash and cash equivalents	$	(7,730	)		$	(856	)		$	(1,738	)

The decreases in cash provided by operating activities in 20162019 compared to 20152018 was primarily due to decreased operating income as the activity levels for the U.S. onshore oil and gas market declined. The decrease in 2015 comparedcash flow from operations during 2018 was primarily due to 2014 were primarily attributable to the industry downturn resulting in year-over-year decreases in net income, offset by reductionsan increase in working capital.

capital, which was impacted by the increase in inventory to support the expansion of new product lines associated with the acquisition of Guardian.

Cash flow used in investing activities in 20162019 decreased $24.9$65.0 million compared to 20152018. Capital expenditures were comparable for 2019 and 2018 at approximately $22 million each year. However, 2018 included an acquisition increasing the cash used in investing activities by $48.9 million, and 2019 included proceeds from the divestiture of two businesses that decreased the cash used in investing activities by $17.8 million.  Cash used in investing activities in 2018 increased $50.1 million compared to 2017 primarily as a result of less cash usedan acquisition for capital expenditures and business acquisitions. Cash flow used$48.9 million in investing activities in 2015 decreased $2.4 million compared to 2014 primarily as a result of lower company-owned life insurance premiums.

2018.

Cash flow used in financing activities in 2016 decreased $55.42019 increased $43.4 million compared to 2015. Cash flow used2018, and decreased $61.6 million in financing activities in 2015 decreased $82.8 million2018 compared to 2014.2017. During 2016,2019, we spent $7.2used $3.3 million to repurchase our common shares, $95.1$97.6 million to pay dividends, and decreasedincreased our debt balance by $215 million through the issuance of new shares.$15 million. During 2015,2018, we spent $159.7used $7.5 million to repurchase our common shares, and $94.2$97.3 million to pay dividends, offset by a net increase inand increased our debt balance by $64 million, primarily to fund the acquisition of $77a business in 2018 for $48.9 million. During 2014,2017, we spent $264.4used $16.9 million to repurchase our common shares, and $89.1$97.1 million to pay dividends, offset by a net increase inand increased our debt balance of $89by $10 million.

During the year ended December 31, 2016,2019, we repurchased 62,00071,700 shares of our common stock for an aggregate amount of $7.2$3.3 million,, or an average price of $115.51$46.14 per share. The repurchase of shares in the open market is at the discretion of management pursuant to shareholder authorization. We regard these treasury shares as a temporary investment which may be used to fund restricted shares that vest or to finance future acquisitions. Under Dutch law and subject to certain Dutch statutory provisions and shareholder approval, we can hold a maximum of 50% of our issued shares in treasury. We currently have shareholder approval to hold 10% of our issued share capital in treasury. On May 19, 201623, 2019 at our annual shareholders meeting, our shareholders authorized the extension of our share repurchase program until November 19, 201723, 2020 to purchase up to 10% of our issued share capital. We believe this share repurchase program has been beneficial to our shareholders. Our share price has increased from $4.03 per share in 2002, when we began to repurchase shares, to $120.04$37.67 per share on December 31, 2016,2019, an increase of over 2,879%835%.

Credit Facility and Available Future Liquidity

In 2011, we issued two series of senior notes with an aggregate principal amount of $150$150 million ("Senior Notes") in a private placement transaction. Series A consists of $75$75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.01% and are due in full on September 30, 2021.2021. Series B consists of $75$75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023.2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.

In 2015, we entered into an agreement to amend

The aggregate borrowing commitment under our revolving credit facility (the "Credit Facility"“Credit Facility”) is $300 million. The Credit Facility provides an option to increase the aggregate borrowing capacity from $350 million to $400 million and to increasecommitment under the uncommitted availability ofCredit Facility by an additional $50$100 million to bring the total borrowings available to $450$400 million if certain prescribed conditions are met by the Company. The Credit Facility bears interest at variable rates from LIBOR plus 1.25%1.375% to a maximum of LIBOR plus 2.0%.

Any outstanding balance under the Credit Facility is due August 29, 2019,June 19, 2023, when the Credit Facility matures. Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity at any point in time is subject to all terms of the agreements, and is reduced by borrowings outstanding at the time and outstanding letters of credit

which totaled $25.8$14.9 million at December 31, 2016,2019, resulting in an available borrowing capacity under the Credit Facility of $306.2$128.1 million. In addition to those items under the Credit Facility, we had $15.0$5.8 million of outstanding letters of credit and performance guarantees and bonds from other sources as of December 31, 2016.

2019.

The terms of the Credit Facility and Senior Notes require us to meet certain covenants, including, but not limited to, an interest coverage ratio (consolidated EBITDA divided by interest expense) and a leverage ratio (consolidated net indebtedness divided by consolidated EBITDA), where consolidated EBITDA (as defined in each agreement) and interest expense are calculated using the most recent four fiscal quarters. The Credit Facility has the more restrictive covenants with a minimum interest coverage ratio of 3.0 to 1.0 and a maximum leverage ratio of 2.5 to 1.0. We believe that we are in compliance with all such covenants contained in our credit agreements. Certain of our material, wholly-owned subsidiaries are guarantors or co-borrowers under the Credit Facility and Senior Notes.

In 2014, we entered into two interest rate swap agreements for a total notional amount of $50 million to hedge changes in the variable rate interest expense on $50 million of our existing or replacement LIBOR-priced debt. Under theThe first swap agreement of $25 million expired on August 29, 2019, and under the second swap agreement, we have fixed the LIBOR portion of the interest rate at 1.73% through August 29, 2019, and under the second swap agreement of $25 million, we fixed the LIBOR portion of the interest rate at 2.50%2.5% through August 29, 2024. EachThis swap is measured at fair value and recorded in our consolidated balance sheetConsolidated Balance Sheet as aan asset or liability. They areIt is designated and qualifyqualifies as a cash flow hedging instrumentsinstrument and areis highly effective. Unrealized losses are deferred to shareholders' equity as a component of accumulated other comprehensive lossgain (loss) and are recognized in income as an increase or decrease to interest expense in the period in which the related cash flows being hedged are recognized in expense.

In addition to our repayment commitments under our Credit Facility and our Senior Notes, we have non-cancellable operating lease arrangements under which we lease property including land, buildings, office equipment and vehicles.

The following table summarizes our future contractual obligations under these arrangements (in thousands):

		Total				Less than 1 year				1-3 Years				3-5 Years				More than 5 Years
Contractual Obligations:
Debt (1)		$	307,000			$	—			$	75,000			$	232,000			$	—
Operating leases (2)			76,501				11,841				19,674				14,026				30,960
Pension (3)			671				671				—				—				—
Total contractual obligations		$	384,172			$	12,512			$	94,674			$	246,026			$	30,960
(1)  Not included in the above balances are anticipated cash payments for interest of $6.1 million a year for 2020-2021 and cash             payments for interest of $3.1 million a year for 2022-2023 for a total of $18.4 million.
(2) Non-cancellable operating lease commitments in accordance to ASC Topic 842 - Leases.
(3)  Our Dutch pension plan requires annual employer contributions. Amounts payable in the future will be based on future             workforce factors which cannot be projected beyond one year.

	Total				Less than 1 year				1-3 Years				3-5 Years				More than 5 Years
Contractual Obligations:
Debt (1)	$	218,000			$	—			$	68,000			$	75,000			$	75,000
Operating leases	62,061				15,514				20,120				10,905				15,522
Pension (2)	1,484				1,484				—				—				—
Total contractual obligations	$	281,545			$	16,998			$	88,120			$	85,905			$	90,522
(1) Not included in the above balances are anticipated cash payments for interest of $6.1 million a year for 2017-2021 and cash payments for interest of $3.1 million a year for 2022-2023 for a total of $36.7 million.
(2) Our Dutch pension plan requires annual employer contributions. Amounts payable in the future will be based on future workforce factors which cannot be projected beyond one year.

We have no significant purchase commitments or similar obligations outstanding at December 31, 2016.2019. Not included in the table above are uncertain tax positions of $8.6$7.3 million that we have accrued for at December 31, 2016,2019, as the amounts and timing of payment, if any, are uncertain. See Note 911 - Income Taxes of the Notes to the Consolidated Financial Statements for further detail of this amount.

At December 31, 2016,2019, we had tax net operating loss carry-forwards in various jurisdictions of approximately $38.8$31.9 million. Although we cannot be certain that these operating loss carry-forwards will be utilized, we anticipate that we will have sufficient taxable income in future years to allow us to fully utilize the carry-forwards that are not subject to a valuation allowance as of December 31, 2016.2019. If unused, those carry-forwards which are subject to expiration may expire during the years 2017-2027.2020-2029. During 2016, $0.12019, less than $0.5 million of net operating loss carry-forwards which carried a full valuation allowance expired unused.

We expect our investment in capital expenditures to track client demand for our services and products. Given the improving, but still uncertain trend in industry activity levels, we have not determined, at this time, the level of investment that will be made in 2017.2020. We will, however, continue to invest to fund the purchase of instrumentation, tools and equipment along with expenditures to replace obsolete or worn-out instrumentation, tools and equipment, to consolidate certain facilities to gain operational efficiencies, and to increase our presence where requested by our clients. In addition, we plan to continue to (i) repurchase our common shares on the open market through our share repurchase program, (ii) pay a dividend, (iii) reduce outstanding debt and (iii)(iv) if available, in the market at acceptable valuations, acquire complementary technologies. Our ability to continue these initiatives depends on, among other things, market conditions and our ability to generate free cash flow.

Our ability to maintain and increase our operating income and cash flows is largely dependent upon continued investing activities. We are a Netherlands holding company and substantially all of our operations are conducted through subsidiaries. Consequently, our cash flow depends upon the ability of our subsidiaries to pay cash dividends or otherwise distribute or advance funds to us. We believe our future cash flows from operating activities, supplemented by our borrowing capacity under existing facilities and our ability to issue additional equity should be sufficient to meet our contractual obligations, capital expenditures, working capital needs, dividend payments, debt requirements and to finance future acquisitions.

Other Matters

In the spring

Outlook

As part of 2016, there were news reports related to Unaoil, a Monaco based company, and activities Unaoil may have engaged in related to international projects involving numerous global companies, including Core Lab. It has also been reported that the U.S. Department of Justice ("DOJ") is conducting an investigation of Unaoil related to the information reported in these news articles. The DOJ and the SEC contacted the Company in connection with that investigation, and the Company has cooperated with, and will continue to cooperate with, both agencies as necessary.

Outlook

Ourour long-term growth strategies remain essentially unchanged. We willstrategy, we continue our efforts to expand our market presence by opening or expanding facilities in strategic areas continue the development of new services and products to meet our client needs and realizing synergies within our business lines.lines subject to client demand and market conditions. We believe our market presence provides us a unique opportunity to service clients who have global operations in addition to thewhether they are international oil companies, national oil companies, or independent oil companies.

Our major clients continue to focus on capital management, return on invested capital (“ROIC”), free cash flow, and returning capital back to their shareholders, as opposed to a focus on production growth at any cost. The companies adopting value versus volume metrics tend to be the more technologically sophisticated operators and form the foundation of Core Lab’s worldwide client base. We have established internal earnings targets that are based on market conditions existing at the timeexpect to benefit from our targets were established. clients’ shift in focus from strictly production growth to employing higher technological solutions in their efforts to maximize economic production growth and estimated ultimate recovery ("EUR").

During the fourth quarter of 2016,2019, as reported by the membersInternational Energy Agency (“IEA”), the Organization of OPEC announcedthe Petroleum Exporting Countries (“OPEC”) determined additional crude-oil production cuts were required in order to support a framework to reduce their daily crude oil production. This event,more balanced market for crude-oil supply market. Additional crude-oil supply will likely come from Guyana, Brazil, Norway and the U.S. Although crude-oil production in the Company's opinion,U.S. has grown over the past several years, the rate of growth has declined over the past two years.

These factors associated with the global crude-oil market are projected to create a tighter crude-oil market into the second half of 2020. A stronger crude-oil market will likely serve as an important catalyst that could speed the re-balancing of the crude oil markets which may providecontinue to support current pricing levels for a significant recovery in industry activity. Based on recent developments, and modest strengthening in the price of crude oil and natural gas,a more sustained level of capital investment in long-term international projects. These international investments are critical, as new field development is required to replace the decline in production from mature fields.

As mentioned above, we believe that the level of activities and workflows experienced in late 2016operators will continue into 2017to manage their capital spending within approved budgets and maintain their focus on generating free cash flow. This was apparent during the fourth quarter of 2019 with the notable declines in both the U.S. onshore rig count and completion activity. As a result, Core believes the U.S. onshore activity in 2020 will strengthen for North America. Additionally, we believe the trend in recent public announcements of major offshore andcontinue to be constrained by these factors.

Core Lab expects international field development spending will be funded largely from operating budgets.  International recovery on a more broad-based scope is expected to improve as 2020 unfolds.  Reservoir Description continues to discuss international projects by ourwith clients, will continue,which are in alignment with Final Investment Decisions (“FIDs”) previously announced. The revenue opportunity for Reservoir Description occurs once the well has been drilled and core and fluid samples are recovered from the well and analyzed.  Activity levels and revenue opportunities from these announcementsFIDs and the emerging international recovery are signs thatexpected to have a recovery of the offshore deepwater and international markets are also improving. An increasepositive impact on financial performance in the activities in these markets could positively impact our revenues, operating income and operating margins as well.

We expect to meet ongoing working capital needs, capital expenditure requirements and funding of our dividend and share repurchase programs from a combination of cash on hand, cash flow from operating activities and available borrowings under our Credit Facility.

2020.

Critical Accounting Estimates

The preparation of financial statements in accordance with U.S. GAAP requires us to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. We evaluate our estimates on an ongoing basis and determine the adequacy of our estimates based on our historical experience and various other assumptions that we believe are reasonable under the circumstances. By nature, these judgments are subject to an inherent degree of uncertainty. We consider an accounting estimate to be critical if it is highly subjective and if changes in the estimate under different assumptions would result in a material impact on our financial condition and results of operations. The following transaction types require significant judgment and, therefore, are considered critical accounting policies as of December 31, 2016.

Allowance for Doubtful Accounts

We evaluate whether client receivables are collectible. We perform ongoing credit evaluations of our clients and monitor collections and payments in order to maintain a provision for estimated uncollectible accounts based on our historical collection experience and our current aging of client receivables outstanding in addition to clients' representations and our understanding of the economic environment in which our clients operate. Based on our review, we establish or adjust allowances for specific clients and the accounts receivable as a whole. Our allowance for doubtful accounts decreased to $3.1 million as of December 31, 2016, compared to $4.1 million as of December 31, 2015.

2019.

Income Taxes

Our income tax expense includes income taxes of Thethe Netherlands, the U.S. and other foreign countries as well as local, state and provincial income taxes. We recognize deferred tax assets or liabilities for the differences between the financial statement carrying amount and tax basis of assets and liabilities using enacted tax rates in effect for the years in which the asset is recovered or the liability is settled. We estimate the likelihood of the recoverability of our deferred tax assets (particularly, net operating loss carry-forwards). Any valuation allowance recorded is based on estimates and assumptions of taxable income into the future and a determination is made of the magnitude of deferred tax assets which are more likely than not to be realized. Valuation allowances of our net deferred tax assets aggregated to $10.0$6.2 million and $10.9$9.7 million at December 31, 20162019 and 2015,2018, respectively. If these estimates and related assumptions change in the future, we may be required to record additional valuation allowances against our deferred tax assets and our effective tax rate may increase which could result in a material adverse effect on our financial position, results of operations and cash flows. We have not provided for deferred taxes on the unremitted earnings of certain subsidiaries that we consider to be indefinitely reinvested. Should we make a distribution of the unremitted earnings of these subsidiaries, we may be required to record additional taxes. We record a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in our tax return. We also recognize interest and penalties, if any, related to unrecognized tax benefits in income tax expense.

Long-Lived Assets, Intangibles and Goodwill

Property, plant and equipment are carried at cost less accumulated depreciation. Major renewals and improvements are capitalized while maintenance and repair costs are charged to expense as incurred. They are depreciated using the straight-line method based on their individual estimated useful lives, except for leasehold improvements, which are depreciated over the remaining lease term, if shorter. We estimate the useful lives and salvage values of our assets based on historical data of similar assets. When long-lived assets are sold or retired, the remaining costs and related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in income. These capitalized long-lived assets could become impaired if our operating plans or business environment changes.

Intangible assets, including patents, trademarks, technology and trade names, are carried at cost less accumulated amortization. Intangibles with determinable lives are amortized using the straight-line method based on the estimated useful life of the intangible. Intangibles with indeterminable lives, which consist primarily of corporate trade names, are not amortized, but are tested for impairment annually or whenever events or changes in circumstances indicate that impairment is possible.

We review our long-lived assets, including definite-lived intangible and right-of-use assets, for impairment when events or changes in circumstances indicate that their net book value may not be recovered over their remaining service lives. Indicators of possible impairment may include significant declines in activity levels in regions where specific assets or groups of assets are located, extended periods of idle use, declining revenue or cash flow or overall changes in general market conditions.

Whenever possible impairment is indicated, we compare the carrying value of the assets to the sum of the estimated undiscounted future cash flows expected from use, plus salvage value, less the costs of the subsequent disposition of the assets. If impairment is still indicated, we compare the fair value of the assets to the carrying amount, and recognize an impairment loss for the amount by which the carrying value exceeds the fair value. We did not record any material impairment charges relating to our long-lived assets held for use during the years ended December 31, 2016, 20152019, 2018 and 2014.

2017.

We record goodwill as the excess of the purchase price over the fair value of the net assets acquired in acquisitions accounted for under the purchase method of accounting. We test goodwill for impairment annually, or more frequently if circumstances indicate a possible impairment.

We evaluated our goodwill for impairment by comparing the fair value of each of our reporting units, which are our reportable segments, to their net carrying value as of the balance sheet date. We estimated the fair value of each reporting unit using a discounted future cash flow analysis. Estimated future cash flows were based on the company's best estimate of future performance. Our impairment analysis is quantitative; however, itboth qualitative and quantitative, and includes subjective estimates based on assumptions regarding future growth rates, interest rates and operating expenses. If the carrying value of the reporting unit exceeds the fair value determined, an impairment loss is recorded to the extent that the implied fair value of the goodwill of the reporting unit is less than its carrying value. We did not record impairment charges relating to our goodwill or our indefinite-lived intangible assets during the years ended December 31, 2016, 20152019, 2018 and 2014.

2017.

We have never identified nor recorded any impairments relating to the goodwill of our current continuing operations.

Obsolete Inventory

We forecast client demand, considering changes in technology which could result in obsolescence. Our valuation reserve for obsolete inventory is based on historical regional sales trends, and various other assumptions and judgments including future demand for this inventory. Our industry is subject to technological change and new product development that could result in obsolete inventory. Our valuation reserve for obsolete inventory at December 31, 2016 was $3.5 million compared to $3.0 million at December 31, 2015.

Pensions and Other Postretirement Benefits

We maintain a noncontributory defined benefit pension plan for substantially all of our Dutch employees hired before 2007.2000. We utilize an actuary to assist in determining the value of the projected benefit obligation. This valuation requires various estimates and assumptions concerning mortality, future pay increases, expected return on plan assets and discount rate used to value our obligations. We recognize net periodic benefit cost based upon these estimates. As required by current accounting standards, we recognize net periodic pension costs associated with this plan in income from current operations and recognize the unfunded status of the plan, if any, as a long-term liability. In addition, we recognize as a component of other comprehensive income, the gains or losses and prior service costs or credits that arise during the period but are not recognized as components of net periodic pension cost. See Note 1012 - Pension and Other Postretirement Benefit Plans of the Notes to the Consolidated Financial Statements. Furthermore, we sponsor several defined contribution plans for the benefit of our employees. We expense these contributions in the period the contribution is made.

Stock-Based Compensation

We have two stock-based compensation plans, as described in further detail in Note 1315 - Stock-Based Compensation of the Notes to the Consolidated Financial Statements. We evaluate the probability that certain of our stock-based plans will meet targets established within the respective agreements and result in the vesting of such awards. In addition, we derive an estimated forfeiture rate that is used in calculating the expense for these awards. For new awards issued and awards modified, repurchased or canceled, the compensation expense is equal to the fair value of the award at the date of the grant and is recognized in the Consolidated Statements of Operations for those awards earned over the requisite service period of the award. The fair value is determined by calculating the share price on the date of grant less the discounted value of the sharesexpected dividends to be paid over the vesting period and applying an estimated forfeiture rate.

period.

Off-Balance Sheet Arrangements

Other than normal operating leases, we

We do not have any off-balance sheet financing arrangements such as securitization agreements, liquidity trust vehicles synthetic leases or special purpose entities. As such, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in such financing arrangements.

Forward-Looking Statements

This Form 10-K and the documents incorporated in this Form 10-K by reference contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Exchange Act. These "forward-looking statements" are based on an analysis of currently available competitive, financial and economic data and our operating plans. They are inherently uncertain and investors should recognize that events and actual results could turn out to be significantly different from our expectations. By way of illustration, when used in this document, words such as "anticipate", "believe", "expect"

"expect", "intend", "estimate", "project", "will", "should", "could", "may", "predict" and similar expressions are intended to identify forward-looking statements. You are cautioned that actual results could differ materially from those anticipated in forward-looking statements. Any forward-looking statements, including statements regarding the intent, belief or current expectations of us or our management, are not guarantees of future performance and involve risks, uncertainties and assumptions about us and the industry in which we operate, including, among other things:

•

our ability to continue to develop or acquire new and useful technology;

our ability to continue to develop or acquire new and useful technology;

•

the realization of anticipated synergies from acquired businesses and future acquisitions;

the realization of anticipated synergies from acquired businesses and future acquisitions;

•

our dependence on one industry, oil and gas, and the impact of commodity prices on the expenditure levels of our clients;

our dependence on one industry, oil and gas, and the impact of commodity prices on the expenditure levels of our clients;

•

competition in the markets we serve;

competition in the markets we serve;

•

the risks and uncertainties attendant to adverse industry, political, economic and financial market conditions, including stock prices, government regulations, interest rates and credit availability;

the risks and uncertainties attendant to adverse industry, political, economic and financial market conditions, including stock prices, government regulations, interest rates and credit availability;

•

unsettled political conditions, war, civil unrest, currency controls and governmental actions in the numerous countries in which we operate;

•

changes in the price of oil and natural gas;

•

weather and seasonal factors;

unsettled political conditions, war, civil unrest, currency controls and governmental actions in the numerous countries in which we operate;

•

integration of acquired businesses; and

changes in the price of oil and natural gas;

•

the effects of industry consolidation.

integration of acquired businesses; and

the effects of industry consolidation.

Our businesses depend, to a large degree, on the level of spending by oil and gas companies for exploration, development and production activities. Therefore, a sustained increase or decrease in the price of natural gas or oil, which could have a material impact on exploration, development and production activities, could also materially affect our financial position, results of operations and cash flows.

The above description of risks and uncertainties is by no means all-inclusive, but is designed to highlight what we believe are important factors to consider. For a more detailed description of risk factors, please see "Item 1A. Risk Factors" in this Form 10-K and our reports and registration statements filed from time to time with the SEC.

All forward-looking statements in this Form 10-K are based on information available to us on the date of this Form 10-K. We do not intend to update or revise any forward-looking statements that we may make in this Form 10-K or other documents, reports, filings or press releases, whether as a result of new information, future events or otherwise, unless required by law.

Recent Accounting Pronouncements

Pronouncements Adopted in 2016

In November 2015, the FASB issued ASU 2015-17 ("Balance Sheet Classification of Deferred Taxes") to simplify the presentation of deferred income taxes. The amendments in this update require that deferred tax liabilities and assets be classified as non-current in a classified statement of financial position. This pronouncement is effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016, with early adoption permitted. We early adopted this standard for our fiscal year beginning on January 1, 2016 and applied the adoption prospectively. The adoption of this standard had no effect on our current Consolidated Statements of Operations and Consolidated Statements of Cash Flows but had an immaterial effect on our Consolidated Balance Sheets with the reclassification of certain deferred tax balance sheet accounts. The comparative prior period Consolidated Balance Sheet as of December 31, 2015 was not retrospectively adjusted.

In February 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-02 ("Amendments to the Consolidation Analysis") which amends the guidelines for determining whether certain legal entities should be consolidated. This update eliminates the presumption that a general partner should consolidate a limited partnership and modifies the evaluation of whether limited partnerships are variable interest entities or voting interest entities. Overall, the amendments in this Update are an improvement to current GAAP because they simplify the Codification and reduce the number of consolidation models through the elimination of the indefinite deferral of Statement 167 and because they place more emphasis on risk of loss when determining a controlling financial interest. This update is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. We adopted this standard on January 1, 2016. The adoption of this standard had no effect on our current consolidated financial statements or on the entities that we consolidate.

Pronouncements Not Yet Effective

In May 2014, the FASB issued ASU 2014-09 ("Revenue from Contracts with Customers"), which provides guidance on revenue recognition. The core principle of this guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance requires entities to apply a five-step method to (1) identify the contract(s) with customers; (2) identify the performance obligation(s) in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligation(s) in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. This pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018 (on July 9, 2015, the FASB deferred the implementation date for one year). We are currently analyzing the standard's impact on our revenues by looking at all of our revenue streams to determine the impact on our Consolidated Balance Sheets, Consolidated Statements of Operations and Consolidated Statements of Cash Flows. At this

point, we do not anticipate any material changes to our revenue recognition policies and procedures nor to our financial statements, but extensive additional disclosures will be required.

In July 2015, the FASB issued ASU 2015-11 ("Simplifying the Measurement of Inventory") to require the measurement of inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This pronouncement is effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016. The adoption of this standard will have no effect on our Consolidated Balance Sheets, Consolidated Statements of Operations and Consolidated Statements of Cash Flows.

2019

In February 2016, the FASB issued ASU 2016-02 ("Leases"), which introduces the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record an ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. In July 2018, the FASB issued ASU 2018-11 ("Targeted Improvements to Leases"), which provides companies with an additional transition method that allows the effects of the adoption of the new standard to be recognized as a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We elected this optional transition method for adoption. The adoption of this standard on January 1, 2019 had a material impact to our Consolidated Balance Sheet, but not to our Consolidated Statement of Operations or Cash Flows. The most significant impact was the recognition of $77.5 million of ROU assets and liabilities for operating leases, while our accounting for finance leases remained substantially unchanged.

In February 2018, the FASB issued ASU 2018-02 ("Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income"), which provides companies with an option to reclassify stranded tax effects resulting from enactment of the Tax Cuts and Jobs Act (the "TCJA") from accumulated other comprehensive income to retained earnings. The new standard is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with earlyand would be applied either in the period of adoption permitted. We do not anticipateor retrospectively to each period (or periods) in which the effect of the change in the tax rate as a result of the TCJA is recognized. The adoption of this standard todid not have a material impact on how we currently record lease transactions; however, it may have a significant impact on our Consolidated Balance Sheets, increasing both asset balances and liability balances.

consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09 ("Improvements to Employee Share-Based Payment Accounting") to simplify the accounting for share-based payment transactions, including accounting for forfeitures, excess tax benefit/expense, and tax withholding requirements. Under this new guidance, (1) companies will have the option to estimate how many shares in a grant will be forfeited or to elect to recognize forfeitures as they occur; (2) all excess tax benefit and expense will be recognized as income tax benefit or expense in the income statement as a discrete item to the quarter, and the accumulated benefits in APIC are eliminated; and (3) companies will be able to withhold share amounts up to the statutory maximum and the award will still be classified as equity. This pronouncement is effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016. The adoption of this standard will result in timing differences in the recognition of stock compensation expense as we will no longer be estimating forfeitures, but accounting for them as they occur, and the reclassification of excess tax benefit/expense on the Consolidated Statements of Cash Flows.

Pronouncements Not Yet Effective

In June 2016, the FASB issued ASU 2016-13 ("Measurement of Credit Losses on Financial Instruments") which replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The new standard is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years with early adoption permitted in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We are evaluating the impact that theThe adoption of this standard will not have a significant impact on our consolidated financial statements.

statements or on our accounting policies and processes.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

RISKS

Market Risk

We are exposed to market risk, which is the potential loss arising from adverse changes in market prices and rates. We do not believe that our exposure to market risks, which are primarily related to interest rate changes, is material.

Interest Rate Risk

We maintain certain debt instruments at a fixed rate whose fair value will fluctuate based on changes in interest rates and market perception of our credit risk. The fair value of our debt at December 31, 20162019 and 20152018 approximated the book value.

In 2014, we entered into two interest rate swap agreements for a total notional amount of $50 million to hedge changes in the variable rate interest expense on $50 million of our existing or replacement LIBOR-priced debt. Under theThe first swap agreement of $25 million expired on August 29, 2019, and under the second swap agreement, we have fixed the LIBOR portion of the interest rate at 1.73% through August 29, 2019, and under the second swap agreement of $25 million, we have fixed the LIBOR portion of the interest rate at 2.50%2.5% through August 29, 2024. EachThis swap is measured at fair value and recorded in our consolidated balance sheetConsolidated Balance Sheet as aan asset or liability. They areIt is designated and qualifyqualifies as a cash flow hedging instrumentsinstrument and areis highly effective. Unrealized losses are deferred to shareholders' equity as a component of accumulated other comprehensive lossgain (loss) and are recognized in income as an increase or decrease to interest expense in the period in which the related cash flows being hedged are recognized in expense.

From time

Our Credit Facility bears interest at variable rates from LIBOR plus 1.375% to time,a maximum of LIBOR plus 2.00%. As a result of the interest rate swap agreement, we are exposedsubject to interest rate risk on our Credit Facility debt for amounts outstanding in excess of $50$25 million which carries a variable interest rate.drawn on our Credit Facility. At December 31, 2016,2019, we had an outstanding balance of $68$157 million. A 10% change in interest rates would not have a material impact on our results of operations or cash flows.

Foreign Currency Risk

We operate in a number of international areas which exposes us to foreign currency exchange rate risk. We do not currently hold or issue forward exchange contracts or other derivative instruments for hedging or speculative purposes (a foreign exchange contract is an agreement to exchange different currencies at a given date and at a specified rate). Foreign exchange gains and losses are the result of fluctuations in the U.S. dollar ("USD") against foreign currencies and are included in other (income) expense in the statements of operations. We recognized foreign exchange losses in countries where the USD weakened against the local currency and we had net monetary liabilities denominated in the local currency, as well as in countries where the USD strengthened against the local currency and we had net monetary assets denominated in the local currency. We recognized foreign exchange gains in countries where the USD strengthened against the local currency and we had net monetary liabilities denominated in the local currency, as well as in countries where the USD weakened against the local currency and we had net monetary assets denominated in the local currency.

Credit Risk

Our financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. Substantially all cash and cash equivalents are on deposit at commercial banks or investment firms. Our trade receivables are with a variety of domestic, international and national oil and gas companies. Management considers this credit risk to be limited due to the creditworthiness and financial resources of these financial institutions and companies.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

For the financial statements and supplementary data required by this Item 8, see Part IV "Item 15. Exhibits, Financial Statement Schedules."

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE

Change in Auditor in 2016

Effective January 1, 2016, the Company appointed KPMG, including its U.S. and Dutch affiliates, (collectively, "KPMG") as its independent registered public accountants. There was no dispute or disagreement with former auditor PricewaterhouseCoopers (“PwC”) on any issue; instead, the change was a result of new Dutch regulations requiring Dutch publicly traded companies to rotate the public auditors of their IFRS accounts after eight years starting with the fiscal year that began January 1, 2016. The change of accounting firms was recommended by the supervisory board of directors and approved by the shareholders at the 2016 annual meeting.

None.

ITEM 9A. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our management, under the supervision of and with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by this report. Our disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed by us in our reports filed or submitted under the Exchange Act is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure and is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of December 31, 20162019 at the reasonable assurance level.

Our management does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud. Further, the design of disclosure controls and internal control over financial reporting must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected.

Management's Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as that term is defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our management, under the supervision of and with the participation of our Chief Executive Officer and Chief Financial Officer, conducted an evaluation of our internal control over financial reporting as of December 31, 2016.2019. In making this assessment, management used the criteria set forth in Internal Control − Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment using these criteria, our management determined that our internal control over financial reporting was effective as of December 31, 2016.

2019.

The effectiveness of our internal control over financial reporting as of December 31, 2016,2019, has been audited by KPMG, an independent registered public accounting firm, as stated in their report which appears herein.

Changes in Internal Control over Financial Reporting

There was no change in our system of internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during our fiscal quarter ended December 31, 20162019 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B. OTHER INFORMATION

None.

None.

PART III

The information required by Part III (Items 10 through 14) is incorporated by reference from our definitive proxy statement (the "2020 Proxy Statement") to be filed in connection with our 20172020 annual meeting of shareholders pursuant to Regulation 14A under the Exchange Act. We expect to file our definitive proxy statement with the SEC within 120 days after the close of the year ended December 31, 20162019.

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Incorporated by reference to the definitive Proxy Statement for the 2020 Annual Meeting of Shareholders.

Core Lab has a Code of Ethics and Corporate Responsibility that applies to all of its directors, officers and employees, including its principal executive, financial and accounting officers, or persons performing similar functions. Core Lab's Code of Ethics and Corporate Responsibility is posted on its website at www.corelab.com/cr/cms/docs/code_of_ethics_and_corporate_ responsibility.pdf.

ITEM 11. EXECUTIVE COMPENSATION

The information set forth under the captions “Compensation Discussion and Analysis,” “Information About our Named Executive Officers and Executive Compensation” in Core Lab's 2020 Proxy Statement is incorporated herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information under the captions “Ownership of Securities—Security Ownership by Certain Beneficial Owners and Management" and “Compensation Discussion and Analysis—2019 Compensation Program Details” in Core Lab's 2020 Proxy Statement is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information under the captions “Information About our Supervisory Directors and Director Compensation—Supervisory Director Independence” and “Information About our Supervisory Directors and Director Compensation—Related Person Transactions” in Core Lab's 2020 Proxy Statement is incorporated herein by reference.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

The information under the caption “Information About our Independent Registered Public Accounting Firm” in Core Lab's 2020 Proxy Statement is incorporated herein by reference.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)
(a)	Financial Statements

1. The following reports, financial statements and schedules are filed herewith on the pages indicated:

	Page
Report of Independent Registered Public Accounting Firm-KPMG LLP	F-1
Report of Independent Registered Public Accounting Firm-PricewaterhouseCoopers LLP	F-3
Consolidated Balance Sheets as of December 31, 20162019 and 20152018	F-4 F-5
Consolidated Statements of Operations for the Years Ended December 31, 2016, 20152019, 2018 and 20142017	F-5 F-6
Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2016, 20152019, 2018 and 20142017	F-6 F-7
Consolidated Statements of Changes in Equity for the Years Ended December 31, 2016, 20152019, 2018 and 20142017	F-7 F-8
Consolidated Statements of Cash Flows for the Years Ended December 31, 2016, 20152019, 2018 and 20142017	F-8 F-10
Notes to the Consolidated Financial Statements	F-10 F-12

2. Financial Statement Schedule

Schedule II - Valuation and Qualifying Account

(b)
(b)	Exhibits

The exhibits listed in the accompanying "Index to Exhibits" are incorporated by reference to the filing indicated or are filed herewith.

ITEM 16. FORM 10-K SUMMARY

Not applicable.

INDEX TO EXHIBITS

Exhibit No.		Exhibit Title		Incorporated by Reference from the Following Documents
3.1		Articles of Association of the Company, as amended on May 18, 2017 (including English translation)		Form 10-K, February 12, 2018 (File No. 001-14273)
4.1		Description of Share Capital		Filed Herewith
10.1		Core Laboratories N.V. 2014 Long-Term Incentive Plan (as amended and restated effective as of May 12, 2014) (1)		Proxy Statement dated March 19, 2014 for Annual Meeting of Shareholders (File No. 001-14273)
10.2		Core Laboratories N.V. 2014 Nonemployee Director Stock Incentive Plan (as amended and restated effective as of May 12, 2014) (1)		Proxy Statement dated March 19, 2014 for Annual Meeting of Shareholders (File No. 001-14273)
10.3		Form of Indemnification Agreement to be entered into by the Company and certain of its directors and officers (1) (P)		Form F-1, September 1, 1995 (File No. 000-26710)
10.4		Core Laboratories Supplemental Executive Retirement Plan effective as of January 1, 1998 (1)		Form 10-K, March 31, 1998 (File No. 000-26710)
10.5		Amendment to Core Laboratories Supplemental Executive Retirement Plan, effective July 29, 1999 (1)		Form 10-Q, August 16, 1999 (File No. 001-14273)
10.6		Amendment to Core Laboratories Supplemental Executive Retirement Plan, effective February 28, 2003 (1)		Form 10-Q, May 15, 2003 (File No. 001-14273)
10.7		Amendment to Core Laboratories Supplemental Executive Retirement Plan dated as of March 5, 2008 (1)		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.8		Form of Restricted Share Award Program Agreement (1)		Form 10-K, February 20, 2007 (File No. 001-14273)
10.9		Form of Core Laboratories 2011 Non-Employee Director Restricted Share Award Program Agreement (1)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.10		Form of Core Laboratories 2017 Performance Share Award Program Agreement (ROIC Based) (1)		Form 10-K, February 11, 2019 (File No. 001-14273)
10.11		Seventh Amended and Restated Credit Agreement, dated as of June 19, 2018, among Core Laboratories, N.V., and Core Laboratories (U.S.) Interests Holdings, Inc., and the lenders party thereto and Bank of America, N.A., as administrative agent		Form 8-K, June 25, 2018 (File No. 001-14273)
10.12		Form of Restated Employment Agreement between Core Laboratories N.V. and David M. Demshur dated as of December 31, 2007 (1)		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.13		Amendment to Restated Employment Agreement between Core Laboratories N.V. and David M. Demshur effective January 1, 2010 (1)		Form 10-K, February 22, 2011 (File No. 001-14273)
10.14		Amendment to Restated Employment Agreement between Core Laboratories N.V. and David M. Demshur effective January 1, 2011 (1)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.15		Amendment to Restated Employment Agreement between Core Laboratories N.V. and David M. Demshur effective January 1, 2015 (1)		Form 10-K, February 11, 2019 (File No. 001-14273)
10.16		Master Note Purchase Agreement, dated as of September 30, 2011		Form 8-K, September 30, 2011 (File No. 001-14273)
10.17		Employment Agreement between Core Laboratories N.V. and Lawrence V. Bruno, dated March 1, 2019 (1)		Form 8-K, March 6, 2019 (File No. 001-14273)
10.18		Employment Agreement between Core Laboratories N.V. and Christopher S. Hill, dated March 1, 2019 (1)		Form 8-K, March 6, 2019 (File No. 001-14273)
21.1		Significant Subsidiaries of the Registrant		Filed Herewith

SIGNATURES

23.1		Consent of KPMG LLP		Filed Herewith
31.1		Certification of Chief Executive Officer Pursuant to Rule 13a-14 of the Securities Exchange Act of 1934, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed Herewith
31.2		Certification of Chief Financial Officer Pursuant to Rule 13a-14 of the Securities Exchange Act of 1934, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed Herewith
32.1		Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Furnished Herewith
32.2		Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Furnished Herewith
101.INS		Inline XBRL Instance Document- the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.		Filed Herewith
101.SCH		Inline XBRL Schema Document		Filed Herewith
101.CAL		Inline XBRL Calculation Linkbase Document		Filed Herewith
101.LAB		Inline XBRL Label Linkbase Document		Filed Herewith
101.PRE		Inline XBRL Presentation Linkbase Document		Filed Herewith
101.DEF		Inline XBRL Definition Linkbase Document		Filed Herewith
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).		Filed Herewith

(1)	Management contracts or compensatory plans or arrangements.

(P)	Paper exhibit

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the SecuritiesExchange Act of 1934, the Registrant has duly caused this report to be signedon its behalf by the undersigned, thereunto duly authorized.

			CORE LABORATORIES N.V.
			By its sole managing director, Core Laboratories International B.V.
Date:	February 10, 20172020	By:	/s/ JACOBUS SCHOUTEN
			Jacobus Schouten
			Managing Director of Core Laboratories International B.V.

Pursuant to the requirements of the Securities Exchange Act of 1934, thisreport has been signed below by the following persons on behalf of theRegistrant and in the capacities indicated, on the 10th day of February, 2017.

2020.

Signature		Title
Signature		Title
/s/ DAVID M. DEMSHUR		/s/ RICHARD L. BERGMARKLAWRENCE BRUNO
David M. Demshur		Richard L. Bergmark Lawrence Bruno
President, Chief Executive Officer,		Executive Vice President and Chief Operating Officer,
Chairman and Supervisory Director		Supervisory Director
/s/ CHRISTOPHER S. HILL		/s/ KEVIN G. DANIELS
Christopher S. Hill		Kevin G. Daniels
Senior Vice President and		Vice President, Treasurer and
Chief Financial Officer and		Chief Accounting Officer
		Supervisory Director
/s/ CHRIS S. HILLGREGORY B. BARNETT		/s/ /s/ MARTHA Z. CARNES
Chris S. Hill Gregory B. Barnett		Martha Z. Carnes
Vice President and		Supervisory Director		Supervisory Director
Chief Accounting Officer
/s/ CHARLES L. DUNLAP		/s/ MICHAEL C. KEARNEY
Charles L. Dunlap		Michael C. Kearney
Supervisory Director		Supervisory Director
/s/ JAN WILLEM SODDERLAND		/s/ MICHAEL STRAUGHEN
Jan Willem Sodderland		Michael Straughen
Supervisory Director		Supervisory Director
/s/ LUCIA VAN GEUNS		/s/ MARGARET ANN VAN KEMPEN		/s/ JAN WILLEM SODDERLAND
Lucia van Geuns		Margaret Ann van Kempen		Jan Willem Sodderland
Supervisory Director		Supervisory Director
/s/ MICHAEL STRAUGHEN
Michael Straughen
Supervisory Director

Report of Independent Registered Public Accounting Firm

The

To the Shareholders and Board of Supervisory Directors and Shareholders

Core Laboratories N.V.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheetsheets of Core Laboratories N.V. and subsidiaries (the Company) as of December 31, 2016,2019 and 2018, the related consolidated statements of operations, comprehensive income, changes in equity, and cash flows for each of the years in the three‑year then ended.period ended December 31, 2019, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). In connection with our audit ofopinion, the consolidated financial statements wepresent fairly, in all material respects, the financial position of the Company as of December 31, 2019 and 2018, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2019, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial statement schedule II - Valuationreporting as of December 31, 2019, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and Qualifying Account. our report dated February 10, 2020 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Change in Accounting Principle

As discussed in note 2 to the consolidated financial statements, the Company changed its method of accounting for leases as of January 1, 2019 due to the adoption of Accounting Standards Codification Topic 842, Leases, as amended.

Basis for Opinion

These consolidated financial statements and financial statement schedule are the responsibility of the Core Laboratories N.V.’sCompany’s management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audit.

audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our auditaudits in accordance with the standards of the Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement. An audit includesmisstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence supportingregarding the amounts and disclosures in the consolidated financial statements. An auditOur audits also includes assessingincluded evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statement presentation.statements. We believe that our audit providesaudits provide a reasonable basis for our opinion.

In our opinion,

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements referredthat were communicated or required to above present fairly,be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in all material respects, the financial position of Core Laboratories N.V. and subsidiaries as of December 31, 2016, and the results of their operations and their cash flows for the year then ended, in conformity with U.S. generally accepted accounting principles. Also inany way our opinion on the related financial statement schedule, when considered in relation to the basic consolidated financial statements, taken as a whole, presents fairly,and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Evaluation of the impact of the Company’s tax structure on its income tax provision

As discussed in notes 1 and 10 to the consolidated financial statements, the Company is domiciled in the Netherlands and has international operations requiring the evaluation of income taxes across many tax jurisdictions.  

We identified the evaluation of the impact of the Company’s tax structure on its income tax provision as a critical audit matter.   Evaluation of the application of tax laws in the relevant jurisdictions, which can be complex and subject to change, and their impact on the Company’s income tax provision required a high degree of auditor judgment.

The primary procedures we performed to address this critical audit matter included the following. We tested certain internal controls over the Company’s income tax process, including controls related to identification, interpretation and application of tax laws. We checked our understanding of the tax structure by inspecting the Company’s legal entity organization chart to identify changes. We evaluated the effects of changes in tax law by reading the Company’s correspondence and agreements with relevant tax authorities, intercompany documentation and advice and guidance from third parties. We identified significant transactions during the year involving the interpretation of tax law and evaluated the relevant accounting impact on the tax provision. We involved income tax professionals with specialized skills and knowledge who assisted in assessing the Company’s application of tax laws, including statutes, regulations and case law, identifying changes in tax laws in relevant jurisdictions, and evaluating the impact on the tax provision of such transactions.

Assessment of the fair value of intangible assets acquired through a business combination

As discussed in note 4 to the consolidated financial statements, the Company acquired Guardian Global Technologies Ltd. during 2018 for a total purchase price of $49.5 million. The acquisition was accounted for under the acquisition method of accounting whereby the total purchase price was allocated to the tangible and intangible assets acquired and liabilities assumed based on the estimated fair values. The Company used projected financial information to estimate the fair value of certain intangible assets of $9.4 million acquired in this business combination, the most significant of which was acquired technology. The purchase price allocation was completed in 2019.

We identified the assessment of the fair value of intangible assets acquired through a business combination as a critical audit matter.  Assessing the determination of fair value of the acquired technology was complex due to the significant estimation uncertainty related to the projected revenue and the discount rate applied. The evaluation of the projected revenue and discount rate used to calculate the fair value required a higher degree of auditor judgment as the sensitivity of changes to these inputs had a significant effect on the Company’s determination of fair value.

The primary procedures we performed to address this critical audit matter included the following. We tested certain internal controls over the Company’s valuation process for the acquired technology, including controls over the review of the significant underlying assumptions such as the projected revenue and the discount rate. We compared the projected revenues to industry reports as well as the historic financial performance of the acquired business. We performed sensitivity analyses to evaluate the changes in the fair value of the intangible assets that would result from changes in the projected revenue assumption. We assessed the Company’s estimate by considering information that might be contrary to that used by the Company, specifically publicly available information regarding valuation of intangible assets in similar transactions. We involved valuation professionals with specialized skills and knowledge who assisted in evaluating the valuation methodology used by the Company and compared the discount rate determined by the Company to publicly available market data for comparable entities.

/s/ KPMG LLP

We have served as the Company’s auditor since 2015.

Houston, Texas
February 10, 2020

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors
Core Laboratories N.V.:

Opinion on Internal Control Over Financial Reporting

We have audited Core Laboratories N.V. and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control – Integrated Framework (2013) issued by the information set forth therein.

Committee of Sponsoring Organizations of the Treadway Commission.  

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), Core Laboratories N.V.’s internal control over financial reportingthe consolidated balance sheets of the Company as of December 31, 2016, based on criteria established2019 and 2018, the related consolidated statements of operations, comprehensive income, changes in Internal Control − Integrated Framework (2013) issued by the Committee of Sponsoring Organizationsequity, and cash flows for each of the Treadway Commission (COSO)years in the three-year period ended December 31, 2019, and the related notes and financial statement schedule II (collectively, the consolidated financial statements), and our report dated February 10, 20172020 expressed an unqualified opinion on the effectiveness of Core Laboratories N.V.’s internal control overthose consolidated financial reporting.

/s/ KPMG LLP

Houston, Texas

February 10, 2017

Report of Independent Registered Public Accounting Firm

statements.

Basis for Opinion

The Board of Supervisory Directors and Shareholders

Core Laboratories N.V.:

We have audited Core Laboratories N.V.’s internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control − Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Core Laboratories N.V.’sCompany’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting included in Item 9A of Core Laboratories N.V.’s Annual Report on Form 10-K. Our responsibility is to express an opinion on Core Laboratories N.V.’sthe Company’s internal control over financial reporting based on our audit.

We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide

reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Core Laboratories N.V. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control − Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of Core Laboratories N.V. and subsidiaries as of December 31, 2016, and the related consolidated statements of operations, comprehensive income, changes in equity, and cash flows for the year then ended, and our report dated February 10, 2017expressed an unqualified opinion on those consolidated financial statements.

/s/ KPMG LLP

Houston, Texas

February 10, 2017

2020

Report of Independent Registered Public Accounting Firm

To the Board of Supervisory Directors and Shareholders of Core Laboratories N.V.:

In our opinion, the consolidated balance sheet as of December 31, 2015 and the related consolidated statements of comprehensive income, stockholders’ equity and cash flows for each of the two years in the period ended December 31, 2015 present fairly, in all material respects, the financial position of Core Laboratories N.V. (a Netherlands corporation) and its subsidiaries at December 31, 2015, and the results of their operations and their cash flows for each of the two years in the period ended December 31, 2015, in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule for each of the two years in the period ended December 31, 2015 presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. These financial statements and financial statement schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audits. We conducted our audits of these financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

/s/ PricewaterhouseCoopers LLP

Houston, Texas

February 12, 2016

CORE LABORATORIES N.V.

CONSOLIDATED BALANCE SHEETS

December 31, 20162019 and 2015

2018

(In thousands, except share and per share data)

		2019				2018
ASSETS
CURRENT ASSETS:
Cash and cash equivalents		$	11,092			$	13,116
Accounts receivable, net of allowance for doubtful accounts of $2,730    and $2,650 at 2019 and 2018, respectively			131,579				129,157
Inventories			50,163				45,664
Prepaid expenses			15,951				15,351
Income taxes receivable			6,527				13,993
Other current assets			5,925				13,696
TOTAL CURRENT ASSETS			221,237				230,977
PROPERTY, PLANT AND EQUIPMENT, net			123,506				122,917
RIGHT OF USE ASSETS			75,697				—
INTANGIBLES, net			17,450				13,054
GOODWILL			213,425				219,412
DEFERRED TAX ASSETS, net			67,312				11,252
OTHER ASSETS			56,046				51,215
TOTAL ASSETS		$	774,673			$	648,827
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable		$	35,611			$	41,155
Accrued payroll and related costs			26,689				22,549
Taxes other than payroll and income			8,366				7,488
Unearned revenues			13,381				17,325
Operating lease liabilities			11,841				—
Income taxes payable			6,324				2,917
Other current liabilities			9,382				11,113
TOTAL CURRENT LIABILITIES			111,594				102,547
LONG-TERM DEBT, net			305,283				289,770
LONG-TERM OPERATING LEASE LIABILITIES			64,660				—
DEFERRED COMPENSATION			50,485				49,359
DEFERRED TAX LIABILITIES, net			27,338				7,634
OTHER LONG-TERM LIABILITIES			33,173				38,617
COMMITMENTS AND CONTINGENCIES
EQUITY:
Preference shares, EUR 0.02 par value; 6,000,000 shares authorized, 0ne    issued or outstanding			—				—
Common shares, EUR 0.02 par value; 200,000,000 shares authorized,    44,796,252 issued and 44,465,562 outstanding at 2019 and    44,796,252 issued and 44,316,845 outstanding at 2018			1,148				1,148
Additional paid-in capital			51,872				57,438
Retained earnings			160,539				156,130
Accumulated other comprehensive income (loss)			(6,330	)			(5,456	)
Treasury shares (at cost), 330,690 at 2019 and 479,407 at 2018			(29,364	)			(52,501	)
Total Core Laboratories N.V. shareholders' equity			177,865				156,759
Non-controlling interest			4,275				4,141
TOTAL EQUITY			182,140				160,900
TOTAL LIABILITIES AND EQUITY		$	774,673			$	648,827

			2016				2015
ASSETS
CURRENT ASSETS:
Cash and cash equivalents			$	14,764			$	22,494
Accounts receivable, net of allowance for doubtful accounts of $3,139 and $4,136 at 2016 and 2015, respectively			114,329				145,689
Inventories			33,720				40,906
Prepaid expenses			10,711				12,053
Income taxes receivable			6,426				7,209
Other current assets			6,511				10,196
TOTAL CURRENT ASSETS			186,461				238,547
PROPERTY, PLANT AND EQUIPMENT, net			129,882				143,211
INTANGIBLES, net			9,936				10,041
GOODWILL			179,044				178,159
DEFERRED TAX ASSETS, net			20,605				11,693
OTHER ASSETS			47,124				43,607
TOTAL ASSETS			$	573,052			$	625,258
LIABILITIES AND EQUITY (DEFICIT)
CURRENT LIABILITIES:
Accounts payable			$	33,720			$	33,474
Accrued payroll and related costs			19,411				36,475
Taxes other than payroll and income			5,816				9,495
Unearned revenues			15,690				14,101
Income taxes payable			15,718				1,733
Other current liabilities			13,668				25,480
TOTAL CURRENT LIABILITIES			104,023				120,758
LONG-TERM DEBT, net			216,488				430,987
DEFERRED COMPENSATION			46,251				43,478
DEFERRED TAX LIABILITIES, net			6,277				4,881
OTHER LONG-TERM LIABILITIES			44,716				48,853
COMMITMENTS AND CONTINGENCIES
EQUITY (DEFICIT):
Preference shares, EUR 0.02 par value; 6,000,000 shares authorized, none issued or outstanding			—				—
Common shares, EUR 0.02 par value; 200,000,000 shares authorized, 44,796,252 issued and 44,151,261 outstanding at 2016 and 44,350,002 issued and 42,375,905 outstanding at 2015			1,148				1,142
Additional paid-in capital			52,850				—
Retained earnings			187,957				219,207
Accumulated other comprehensive income (loss)			(9,828		)		(10,538		)
Treasury shares (at cost), 644,991 at 2016 and 1,974,097 at 2015			(80,773		)		(238,875		)
Total Core Laboratories N.V. shareholders' equity (deficit)			151,354				(29,064		)
Non-controlling interest			3,943				5,365
TOTAL EQUITY (DEFICIT)			155,297				(23,699		)
TOTAL LIABILITIES AND EQUITY (DEFICIT)			$	573,052			$	625,258

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF OPERATIONS

For the Years Ended December 31, 2016, 20152019, 2018 and 2014

2017

(In thousands, except per share data)

		2019				2018				2017
REVENUE:
Services		$	474,193			$	486,820			$	480,264
Product sales			194,017				214,026				167,555
Total Revenue			668,210				700,846				647,819
OPERATING EXPENSES:
Cost of services, exclusive of depreciation shown below			345,641				343,833				333,365
Cost of product sales, exclusive of depreciation shown below			149,938				153,131				131,593
General and administrative expenses, exclusive of depreciation    shown below			48,023				62,910				47,737
Depreciation			20,812				22,013				23,605
Amortization			1,793				1,074				919
Other (income) expense, net			5,319				(737	)			632
OPERATING INCOME			96,684				118,622				109,968
Interest expense			14,690				13,328				10,734
Income before income tax expense			81,994				105,294				99,234
Income tax expense (benefit)			(12,290	)			25,447				18,249
Income from continuing operations			94,284				79,847				80,985
Income (loss) from discontinued operations			7,833				(58	)			2,111
Net income			102,117				79,789				83,096
Net income (loss) attributable to non-controlling interest			134				263				(29	)
Net income attributable to Core Laboratories N.V.		$	101,983			$	79,526			$	83,125
EARNINGS PER SHARE INFORMATION:
Basic earnings per share from continuing operations		$	2.13			$	1.81			$	1.83
Basic earnings (loss) per share from discontinued operations		$	0.17			$	(0.01	)		$	0.05
Basic earnings per share attributable to Core Laboratories N.V.		$	2.30			$	1.80			$	1.88
Diluted earnings per share from continuing operations		$	2.11			$	1.80			$	1.83
Diluted earnings (loss) per share from discontinued operations		$	0.17			$	(0.01	)		$	0.05
Diluted earnings per share attributable to Core Laboratories N.V.		$	2.28			$	1.79			$	1.88
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic			44,357				44,206				44,153
Diluted			44,646				44,474				44,264

		2016				2015				2014
REVENUE:
Services		$	470,259			$	611,954			$	780,872
Product sales		124,482				185,566				304,350
Total Revenue		594,741				797,520				1,085,222
OPERATING EXPENSES:
Cost of services, exclusive of depreciation shown below		331,688				387,739				449,488
Cost of product sales, exclusive of depreciation shown below		110,956				144,913				215,783
General and administrative expenses, exclusive of depreciation shown below		39,390				49,729				45,655
Depreciation		26,029				26,545				25,297
Amortization		843				912				1,399
Other (income) expense, net		(344		)		3,669				1,069
Severance and other charges		—				22,943				—
OPERATING INCOME		86,179				161,070				346,531
Interest expense		11,572				12,380				10,600
Income before income tax expense		74,607				148,690				335,931
Income tax expense		10,748				33,758				77,305
Net income		63,859				114,932				258,626
Net income attributable to non-controlling interest		(36		)		85				1,141
Net income attributable to Core Laboratories N.V.		$	63,895			$	114,847			$	257,485
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.		$	1.47			$	2.69			$	5.80
Diluted earnings per share attributable to Core Laboratories N.V.		$	1.46			$	2.68			$	5.77
Cash dividends per share		$	2.20			$	2.20			$	2.00
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic		43,479				42,747				44,362
Diluted		43,670				42,908				44,600

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

For the Years Ended December 31, 2016, 20152019, 2018 and 2014

2017

(In thousands)

		2019				2018				2017
Net income		$	102,117			$	79,789			$	83,096
Other comprehensive income:
Derivatives
Changes in fair value of interest rate swaps			(1,058	)			418				98
Interest rate swap amounts reclassified to interest expense			(61	)			69				526
Income taxes on derivatives			235				(102	)			(156	)
Total derivatives			(884	)			385				468
Pension and other postretirement benefit plans
Adjustment of unrecognized pension actuarial gain (loss)			(1,988	)			1,557				974
Prior service cost
Prior service cost recognized during year			—				157				—
Amortization to net income of prior service cost			(848	)			(106	)			(77	)
Amortization to net income of actuarial loss			3,171				1,706				440
Income taxes on pension and other postretirement benefit plans			(325	)			(802	)			(330	)
Total pension and other postretirement benefit plans			10				2,512				1,007
Total other comprehensive income (loss)			(874	)			2,897				1,475
Comprehensive income			101,243				82,686				84,571
Comprehensive income (loss) attributable to non-controlling interests			134				263				(29	)
Comprehensive income attributable to Core Laboratories N.V.		$	101,109			$	82,423			$	84,600

	2016				2015				2014
Net income	$	63,859			$	114,932			$	258,626
Other comprehensive income:
Derivatives
Changes in fair value of interest rate swaps	(293		)		(1,471		)		(1,327		)
Interest rate swap amounts reclassified to interest expense	829				971				245
Income taxes on derivatives	(197		)		583				—
Total derivatives	339				83				(1,082		)
Pension and other postretirement benefit plans
Adjustment of unrecognized pension actuarial gain (loss)	(17		)		1,151				(4,399		)
Prior service credit arising during period	—				—				1,024
Prior service cost
Amortization to net income of transition asset	—				(96		)		(87		)
Amortization to net income of prior service cost	(81		)		(85		)		7
Amortization to net income of actuarial loss	593				727				540
Income taxes on pension and other postretirement benefit plans	(124		)		(424		)		729
Total pension and other postretirement benefit plans	371				1,273				(2,186		)
Total other comprehensive income (loss)	710				1,356				(3,268		)
Comprehensive income	64,569				116,288				255,358
Comprehensive income attributable to non-controlling interests	(36		)		85				1,141
Comprehensive income attributable to Core Laboratories N.V.	$	64,605			$	116,203			$	254,217

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

For the Years Ended December 31, 2016, 20152019, 2018 and 2014

2017

(In thousands, except share data)

		2019				2018				2017
Common Shares
Balance at Beginning of Period		$	1,148			$	1,148			$	1,148
Balance at End of Period		$	1,148			$	1,148			$	1,148
Additional Paid-In Capital
Balance at Beginning of Period		$	57,438			$	54,463			$	52,850
Stock based-awards			(5,566	)			2,975				1,529
Recognition of true-up from estimated forfeitures upon Adoption of ASU 2016-09			—				—				84
Balance at End of Period		$	51,872			$	57,438			$	54,463
Retained Earnings
Balance at Beginning of Period		$	156,130			$	173,855			$	187,957
Dividends paid			(97,574	)			(97,251	)			(97,143	)
Net income attributable to Core Laboratories N.V.			101,983				79,526				83,125
Recognition of true-up from estimated forfeitures upon Adoption of ASU 2016-09			—				—				(84	)
Balance at End of Period		$	160,539			$	156,130			$	173,855
Accumulated Other Comprehensive Income (Loss)
Balance at Beginning of Period		$	(5,456	)		$	(8,353	)		$	(9,828	)
Amortization of deferred pension costs, net of tax			10				2,512				1,007
Interest rate swaps, net of tax			(884	)			385				468
Balance at End of Period		$	(6,330	)		$	(5,456	)		$	(8,353	)
Treasury Stock
Balance at Beginning of Period		$	(52,501	)		$	(76,269	)		$	(80,773	)
Stock based-awards			26,445				31,219				21,413
Repurchase of common shares			(3,308	)			(7,451	)			(16,909	)
Balance at End of Period		$	(29,364	)		$	(52,501	)		$	(76,269	)
Non-Controlling Interest
Balance at Beginning of Period		$	4,141			$	3,888			$	3,943
Non-controlling interest additions			—				(10	)			(26	)
Net income (loss) attributable to non-controlling interest			134				263				(29	)
Balance at End of Period		$	4,275			$	4,141			$	3,888
Total Equity
Balance at Beginning of Period		$	160,900			$	148,732			$	155,297
Stock based-awards			20,879				34,194				22,942
Repurchase of common shares			(3,308	)			(7,451	)			(16,909	)
Dividends paid			(97,574	)			(97,251	)			(97,143	)
Non-controlling interest additions			—				(10	)			(26	)
Amortization of deferred pension costs, net of tax			10				2,512				1,007
Interest rate swaps, net of tax			(884	)			385				468
Net income			102,117				79,789				83,096
Balance at End of Period		$	182,140			$	160,900			$	148,732
Cash Dividends per Share		$	2.20			$	2.20			$	2.20

															Accumulated
	Common Shares						Additional								Other				Treasury Stock						Non-
	Number of		Par				Paid-In				Retained				Comprehensive				Number of						Controlling				Total
	Shares		Value				Capital				Earnings				Income (Loss)				Shares		Amount				Interest				Equity
BALANCE, December 31, 2013	46,750,002		$	1,203			$	—			$	415,930			$	(8,626	)		1,648,613		$	(245,184	)		$	6,066			$	169,389
Stock-based compensation, net of awards issued	—		—				1,295				(12,683		)		—				(216,395	)	31,858				—				20,470
Tax benefit of stock-based awards issued	—		—				3,020				—				—				—		—				—				3,020
Repurchases of common shares	—		—				—				—				—				1,680,800		(264,368		)		—				(264,368		)
Dividends paid	—		—				—				(89,089		)		—				—		—				—				(89,089		)
Cancellation of treasury shares	(1,150,000	)	(29		)		(4,315		)		(155,737		)		—				(1,150,000	)	160,081				—				—
Non-controlling interest dividend	—		—				—				—				—				—		—				(787		)		(787		)
Other comprehensive income	—		—				—				—				(3,268		)		—		—				—				(3,268		)
Net income (loss)	—		—				—				257,485				—				—		—				1,141				258,626
BALANCE, December 31, 2014	45,600,002		$	1,174			$	—			$	415,906			$	(11,894	)		1,963,018		$	(317,613	)		$	6,420			$	93,993

Stock-based compensation, net of awards issued	—		—				3,267				(11,044		)		—				(183,455	)	29,056				—				21,279
Tax benefit of stock-based awards issued	—		—				(175		)		—				—				—		—				—				(175		)
Repurchases of common shares	—		—				—				—				—				1,444,534		(159,709		)		—				(159,709		)
Dividends paid	—		—				—				(94,235		)		—				—		—				—				(94,235		)
Cancellation of treasury shares	(1,250,000	)	(32		)		(3,092		)		(206,267		)		—				(1,250,000	)	209,391				—				—
Non-controlling interest dividend	—		—				—				—				—				—		—				(1,140		)		(1,140		)
Other comprehensive income	—		—				—				—				1,356				—		—				—				1,356
Net income (loss)	—		—				—				114,847				—				—		—				85				114,932
BALANCE, December 31, 2015	44,350,002		$	1,142			$	—			$	219,207			$	(10,538	)		1,974,097		$	(238,875	)		$	5,365			$	(23,699	)
Stock-based compensation, net of awards issued	—		—				(197		)		—				—				(141,106	)	22,276				—				22,079
Tax benefit of stock-based awards issued	—		—				(1,162		)		—				—				—		—				—				(1,162		)
Repurchases of common shares	—		—				—				—				—				62,000		(7,161		)		—				(7,161		)
Dividends paid	—		—				—				(95,145		)		—				—		—				—				(95,145		)
Issuance of common shares	1,696,250		38				197,164				—				—				—		—				—				197,202
Cancellation of treasury shares	(1,250,000	)	(32		)		(142,955		)		—				—				(1,250,000	)	142,987				—				—
Non-controlling interest dividend	—		—				—				—				—				—		—				(1,386		)		(1,386		)
Other comprehensive income	—		—				—				—				710				—		—				—				710
Net income (loss)	—		—				—				63,895				—				—		—				(36		)		63,859
BALANCE, December 31, 2016	44,796,252		$	1,148			$	52,850			$	187,957			$	(9,828	)		644,991		$	(80,773	)		$	3,943			$	155,297

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF CASH FLOWS

CHANGES IN EQUITY (Continued)

For the Years Ended December 31, 2016, 20152019, 2018 and 2014

2017

(In thousands)thousands, except share data)

		2019				2018				2017
Common Shares - Number of shares
Balance at Beginning of Period			44,796,252				44,796,252				44,796,252
Cancellation of common shares			—				—				—
Balance at End of Period			44,796,252				44,796,252				44,796,252
Treasury Stock - Number of shares
Balance at Beginning of Period			479,407				612,047				644,991
Stock based-awards			(220,417	)			(218,625	)			(191,513	)
Repurchase of common shares			71,700				85,985				158,569
Balance at End of Period			330,690				479,407				612,047

			2016				2015				2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income			$	63,859			$	114,932			$	258,626
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation			22,079				21,279				20,470
Depreciation and amortization			26,872				27,457				26,696
Non-cash interest expense			501				702				445
(Increase) decrease in value of life insurance policies			(824		)		909				(1,581		)
Deferred income taxes			(14,385		)		(107		)		4,682
Asset impairments			—				5,199				—
Net (recovery) provision for doubtful accounts			(18		)		2,592				1,243
Other non-cash items			(1,399		)		(860		)		(466		)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable			31,584				49,261				3,486
Inventories			6,219				3,049				2,894
Prepaid expenses and other current assets			2,657				7,744				(10,088		)
Other assets			340				2,652				680
Accounts payable			(1,036		)		(13,353		)		(3,021		)
Accrued expenses			(6,738		)		(9,723		)		(2,611		)
Other long-term liabilities			587				4,275				1,873
Unearned revenue			1,589				3,092				121
Net cash provided by operating activities			131,887				219,100				303,449
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures			(11,356		)		(22,797		)		(36,586		)
Patents and other intangibles			(348		)		(1,460		)		(854		)
Acquisitions, net of cash acquired			(1,242		)		(13,774		)		(1,200		)
Proceeds from sale of assets			740				1,320				884
Premiums on life insurance			(2,515		)		(2,943		)		(4,310		)
Net cash used in investing activities			(14,721		)		(39,654		)		(42,066		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt borrowings			(316,244		)		(139,656		)		(128,162		)
Proceeds from debt borrowings			99,000				215,000				217,000
Excess tax benefits from stock-based payments			(1,162		)		(175		)		3,020
Debt financing costs			—				(387		)		(1,128		)
Non-controlling interest - dividend			(1,386		)		(1,140		)		(394		)
Dividends paid			(95,145		)		(94,235		)		(89,089		)
Repurchase of common shares			(7,161		)		(159,709		)		(264,368		)
Issuance of common shares			197,202				—				—
Net cash used in financing activities			(124,896		)		(180,302		)		(263,121		)
NET CHANGE IN CASH AND CASH EQUIVALENTS			(7,730		)		(856		)		(1,738		)
CASH AND CASH EQUIVALENTS, beginning of year			22,494				23,350				25,088
CASH AND CASH EQUIVALENTS, end of year			$	14,764			$	22,494			$	23,350

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

For the Years Ended December 31, 2016, 20152019, 2018 and 2014

2017

(In thousands)

		2019				2018				2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations		$	94,284			$	79,847			$	80,985
Income (loss) from discontinued operations, net of tax			7,833				(58	)			2,111
Net income			102,117				79,789				83,096
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation			20,879				34,194				22,942
Depreciation and amortization			22,605				23,087				24,524
Changes to value of life insurance policies			(2,899	)			(874	)			(6,112	)
Deferred income taxes			(36,345	)			1,832				9,015
Realization of pension obligation			(112	)			2,257				(724	)
Net (recovery) provision for doubtful accounts			754				692				(202	)
Gain on sale of business			(1,154	)			—				—
Gain on sale of discontinued operations			(8,411	)			—				—
Other non-cash items			(200	)			(159	)			217
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable			(3,191	)			2,265				(18,565	)
Inventories			(3,892	)			(10,403	)			446
Prepaid expenses and other current assets			3,561				(9,048	)			(4,549	)
Other assets			(46	)			6,264				545
Accounts payable			(3,757	)			(1,752	)			8,721
Accrued expenses			8,067				(6,903	)			(6,775	)
Other long-term liabilities			(2,936	)			(11,239	)			10,313
Unearned revenue			(5,513	)			1,825				1,379
Net cash provided by operating activities			89,527				111,827				124,271
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures			(22,269	)			(21,741	)			(18,775	)
Patents and other intangibles			(180	)			(1,190	)			(379	)
Acquisitions, net of cash acquired			—				(47,314	)			—
Proceeds from sale of assets			887				882				702
Proceeds from sale of business			2,980				—				—
Proceeds from sale of business of discontinued operations			14,789				—				—
Premiums on life insurance			(1,884	)			(1,276	)			(2,105	)
Net cash used in investing activities			(5,677	)			(70,639	)			(20,557	)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt borrowings			(123,000	)			(114,000	)			(130,000	)
Proceeds from debt borrowings			138,000				178,000				140,000
Debt financing costs			—				(1,760	)			—
Dividends paid			(97,574	)			(97,251	)			(97,143	)
Repurchase of common shares			(3,308	)			(7,451	)			(16,909	)
Other financing activities			8				(10	)			(26	)
Net cash used in financing activities			(85,874	)			(42,472	)			(104,078	)
NET CHANGE IN CASH AND CASH EQUIVALENTS			(2,024	)			(1,284	)			(364	)
CASH AND CASH EQUIVALENTS, beginning of year			13,116				14,400				14,764
CASH AND CASH EQUIVALENTS, end of year		$	11,092			$	13,116			$	14,400

	2016				2015				2014
Supplemental disclosures of cash flow information:
Cash payments for interest	$	11,248			$	12,313			$	10,272
Cash payments for income taxes	$	12,181			$	35,523			$	79,644
Non-cash investing and financing activities:
Capital expenditures incurred but not paid for as of the end of the year	$	1,627			$	483			$	1,009
Insurance premium financed	$	—			$	2,228			$	—

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

For the Years Ended December 31, 2019, 2018 and 2017

(In thousands)

		2019				2018				2017
Supplemental disclosures of cash flow information:
Cash payments for interest		$	13,631			$	11,499			$	10,527
Cash payments for income taxes		$	13,804			$	31,928			$	24,314
Non-cash investing and financing activities:
Capital expenditures incurred but not paid for as of the end of the year		$	222			$	628			$	744

The accompanying notes are an integral part of these Consolidated Financial Statements.

CORE LABORATORIES N.V.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2016

2019

1.  DESCRIPTION OF BUSINESS

Core Laboratories N.V. ("Core Laboratories", "Core Lab", "the Company", "we", "our" or "us") is a Netherlands limited liability company. We were established in 1936 and are one of the world's leading providers of proprietary and patented reservoir description and production enhancement services and reservoir management servicesproducts to the oil and gas industry. These services are directed toward enablingand products can enable our clients to improve reservoir performance and increase oil and gas recovery from their producing fields. We have over 70 offices in more than 50 countries and have approximately 4,4004,300 employees.

We operate our business in three reportable2 reporting segments. These complementary segments provide different services and products and utilize different technologies for improving reservoir performance and increasing oil and gas recovery from new and existing fields:  (1) Reservoir Description and (2) Production Enhancement and (3) Reservoir Management.Enhancement. For a description of product types and services offered by these business segments, see Note 1820 - Segment Reporting.

In 2018, in a continuing effort to streamline our business and align our business strategy for further integration of services and products, the Company committed to divest the business of our full range of permanent downhole monitoring systems and related services, which had been part of our Production Enhancement segment. We completed the divestment of this business in 2019; the disclosure relating to the divestment of this business is included in Note 19 - Discontinued Operations. All prior period income statements have been adjusted to reclassify amounts related to this business to discontinued operations to conform to current period presentation. All disclosures on operating income and net income within these statements reflect the results from continuing operations for all periods presented. These reclassifications had no impact on the reported net income attributable to Core Laboratories N.V., financial position or cash flows for any of these prior periods.

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The accompanying Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the U.S. ("U.S. GAAP" or "GAAP"), and include the accounts of Core Laboratories and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. The equity method of accounting is used to record our interest in investments in which we have less than a majority interest and do not exercise control but do exert significant influence. We use the cost method to record certain other investments in which we own less than 20% of the outstanding equity and do not exercise control or exert significant influence. We record non-controllinginterest associated with consolidated subsidiaries that are less than 100% owned. All inter-company transactions and balances have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in accordance with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. We evaluate our estimates on an ongoing basis and utilize our historical experience, as well as various other assumptions that we believe are reasonable in a given circumstance, in order to make these estimates. Actual results could differ from our estimates, as assumptions and conditions change.

The following accounts, among others, require us to use critical estimates and assumptions:

▪	allowance for doubtful accounts;

▪	inventory reserves; obsolete inventory;

▪	depreciation and amortization;

▪	long-lived assets, intangibles and goodwill;

▪	income taxes;

▪	pensions and other postretirement benefits; and

▪	stock-based compensation.compensation; and

▪

leases.

Accounting policies relating to these accounts and the nature of these estimates are further discussed under the applicable caption. For each of these critical estimates it is at least reasonably possible that changes in these estimates will occur in the short term which may impact our financial position or results of operations.

Cash and Cash Equivalents

Cash and cash equivalents include all short-term, highly liquid instruments purchased with an original maturity of three months or less. These items are carried at cost, which approximates fair value.

Concentration of Credit Risk

Our financial instruments that potentially subject us to concentrations of credit risk relate primarily to cash and cash equivalents and trade accounts receivable. All cash and cash equivalents are on deposit at commercial banks or investment firms with significant financial resources. Our trade receivables are with a variety of domestic, international and national oil and gas companies. We had no clients who provided more than 10% of our revenue for the years ended December 31, 2016, 20152019, 2018 and 2014.2017. We consider our credit risk related to trade accounts receivable to be limited due to the creditworthiness and financial resources of our clients. We evaluate our estimate of the allowance for doubtful accounts on an on-going basis throughout the year.

Concentration of Interest Rate Risk

We are exposed to interest rate risk on our revolving credit facility (the "Credit Facility") debt, which carries a variable interest rate. We are exposed to interest rate risk on our Senior Notes which carry a fixed interest rate, but whose fair value will fluctuate based on changes in interest rates and market perception of our credit risk.

Derivative Instruments

We may enter into a variety of derivative instruments in connection with the management of our exposure to fluctuations in interest rates or currency exchange rates. See Note 1416 - Derivative Instruments and Hedging Activities.

We do not enter into derivatives for speculative purposes.

Accounts Receivable

Trade accounts receivable are recorded at their invoiced amounts and do not bear interest. We perform ongoing credit evaluations of our clients and monitor collections and payments in order to maintain a provision for estimated uncollectible accounts based on our historical collection experience and our current aging of client receivables outstanding, in addition to client's representations and our understanding of the economic environment in which our clients operate. Based on our review we establish or adjust allowances for specific clients and the accounts receivable as a whole, and recognize expense. When an account is determined to be uncollectible, we charge the receivable to our allowance for doubtful accounts. Our allowance for doubtful accounts totaled $3.1$2.7 million and $4.1$2.7 million at December 31, 20162019 and 2015,2018, respectively. The net carrying value of accounts receivable is considered to be representative of its respective fair value.

Inventories

Inventories consist of manufactured goods, materials and supplies used for sales or services to clients. Inventories are stated at the lower of cost or estimated net realizable value. Inventory costs are recorded at standard cost which approximates the first-in, first-out method.

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets are comprised primarily of prepaid insurance, value added taxes and prepaid rents.

Prior to 2016, this account also included current deferred income taxes. On January 1, 2016, we early adopted ASU 2015-17 ("Balance Sheet Classification of Deferred Taxes") issued by the FASB in November 2015 to simplify the presentation of deferred income taxes. The amendments in this update require that deferred tax liabilities and assets be classified as non-current in a classified statement of financial position. As we applied the adoption prospectively, the comparative prior period Consolidated Balance Sheet as of December 31, 2015 has not been retrospectively adjusted. The adoption of this standard had no effect on our current Consolidated Statements of Operations and Consolidated Statements of Cash Flows.

Property, Plant and Equipment

Property, plant and equipment are carried at cost less accumulated depreciation. Major renewals and improvements are capitalized while maintenance and repair costs are charged to expense as incurred. They are depreciated using the straight-line method based on their individual estimated useful lives, except for leasehold improvements, which are depreciated over the remaining lease term, if shorter. We estimate the useful lives and salvage values of our assets based on historical data as follows:

Buildings and leasehold improvements		3 - 40 years
Machinery and equipment		3 - 10 years

When long-lived assets are sold or retired, the remaining costs and related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in income. These capitalized long-lived assets could become impaired if our operating plans or business environment changes.

We review our long-lived assets, including definite-lived intangible assets, for impairment when events or changes in circumstances indicate that their net book value may not be recovered over their remaining service lives. Indicators of possible impairment may include significant declines in activity levels in regions where specific assets or groups of assets are located, extended periods of idle use, declining revenue or cash flow or overall changes in general market conditions.

Whenever possible impairment is indicated, we compare the carrying value of the assets to the sum of the estimated undiscounted future cash flows expected from use, plus salvage value, less the costs of the subsequent disposition of the assets. If impairment is still indicated, we compare the fair value of the assets to the carrying amount, and recognize an impairment loss for the amount by which the carrying value exceeds the fair value. We did not record any material impairment charges relating to our long-lived assets held for use during the years ended December 31, 20162019, 2018 and 2017.

Leases

Effective January 1, 2019, we adopted the provisions of ASC 842, Leases, 2015using the transition method in which prior periods are not adjusted for this change in accounting principle. Upon adoption, we recognized $77.5 million of right-of-use (“ROU”) assets and liabilities for operating leases. Under previous accounting, ROU assets and operating lease liabilities were not reflected on the Consolidated Balance Sheet. Adoption of this new standard did not have a material impact to our Consolidated Statement of Operations or 2014.

Cash Flows. We have operating leases primarily consisting of offices and lab space, machinery and equipment and vehicles. We determine if an arrangement is a lease at inception. Operating leases are included in ROU assets, current operating lease liabilities and long-term operating lease liabilities in our Consolidated Balance Sheet. Finance leases, are included in property and equipment, other current liabilities and other long term liabilities in our Consolidated Balance Sheet.

Lease assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. Where our lease does not provide an implicit rate, we estimate the discount rate used to discount the future minimum lease payments using our incremental borrowing rate and other information available at the commencement date. The ROU assets also include all initial direct costs incurred. Our lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option.

Intangibles and Goodwill

Intangible assets, including patents, trademarks, technology and trade names, are carried at cost less accumulated amortization. Intangibles with determinable lives are amortized using the straight-line method based on the estimated useful life of the intangible. Intangibles with indeterminable lives, which consist primarily of corporate trade names, are not amortized, but are tested for impairment annually or whenever events or changes in circumstances indicate that impairment is possible.

We record goodwill as the excess of the purchase price over the fair value of the net assets acquired in acquisitions accounted for under the purchase method of accounting. We test goodwill for impairment annually, or more frequently if circumstances indicate possible impairment.

We evaluated our goodwill for impairment by comparing the fair value of each of our reporting units, which are our reportable segments, to their net carrying value as of the balance sheet date. We estimated the fair value of each reporting unit using a discounted future cash flow analysis. Estimated future cash flows were based on the Company's best estimate of future performance. Our impairment analysis is quantitative; however, itboth qualitative and quantitative, and includes subjective estimates based on assumptions regarding future growth rates, interest rates and operating expenses. If the carrying value of the reporting unit exceeds the fair value determined, an impairment loss is recorded to the extent that the implied fair value of the goodwill of the reporting unit is less than its carrying value. Any subsequent impairment loss could result in a material adverse effect upon our financial position and results of operations. We did not record impairment charges relating to our goodwill or our indefinite-lived intangible assets during the years ended December 31, 2016, 2015 or 2014.

2019, 2018 and 2017.

We have never identified nor recorded any impairments relating to the goodwill of our current continuing operations.

Other Assets

Cash surrender value of life insurance relates to postretirement benefit plans. See Note 1012 - Pension and Other Postretirement Benefit Plans. Investments include unconsolidated affiliates accounted for under the equity method where the

operations of these entities are in-line with those of our core businesses. These entities are not considered special purpose entities nor do we have special off-balance sheet arrangements through these entities.

Other assets at December 31, 2019 and 2018 consisted of the following (in thousands):

		2019				2018
Cash surrender value of life insurance		$	47,195			$	41,575
Investments in unconsolidated affiliates			3,969				3,760
Other			4,882				5,880
Total other assets		$	56,046			$	51,215

		2016				2015
Cash surrender value of life insurance		$	39,059			$	36,087
Investments in unconsolidated affiliates		3,224				2,719
Other		4,841				4,801
Total other assets		$	47,124			$	43,607

Accounts Payable

Trade accounts payable are recorded at their invoiced amounts and do not bear interest. The carrying value of accounts payable is considered to be representative of its respective fair value.

Income Taxes

We recognize deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the Consolidated Financial Statements or tax returns. Deferred tax assets and liabilities are determined based on the difference between the financial statement and the tax basis of assets and liabilities using enacted tax rates in effect for the year in which the asset is recovered or the liability is settled. We include interest and penalties from tax judgments in income tax expense.

We record a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in our tax return. We also recognize interest and penalties, if any, related to unrecognized tax benefits in income tax expense. See Note 911 - Income Taxes.

Comprehensive Income

Comprehensive income is comprised of net income and other charges or credits to equity that are not the result of transactions with owners. Other comprehensive income consists of prior service costs and an unrecognized net actuarial gain and loss from a pension plan and changes in the fair value of our interest rate swaps. See Note 1012 - Pension and Other Postretirement Benefit Plans and Note 1416 - Derivative Instruments and Hedging Activities.

Revenue Recognition

All of our revenue is derived from contracts with clients and is reported as revenue in the Consolidated Statements of Operations. Our contracts generally include standard commercial payment terms generally acceptable in each region, and do not include financing with extended payment terms. We have no significant obligations for refunds, warranties, or similar obligations. Our revenue does not include taxes collected from our customers. In certain circumstances we apply the guidance in Accounting Standards Codification Topic 606 - Revenue from Contracts with Customers ("Topic 606") to a portfolio of contracts with similar characteristics. We use estimates and assumptions when accounting for a portfolio that reflect the size and composition of the portfolio of contracts.

A performance obligation is a promise in a contract to transfer a distinct service or good to a client, and is the unit of account under Topic 606. We have contracts with two general groups of performance obligations: those that require us to perform analysis and/or diagnostic tests in our laboratory or at the client's wellsite and those from the sale of tools, diagnostic and equipment products and related services. We recognize revenue at an amount that reflects the consideration expected to be received in exchange for such services or goods as described below by applying the five-step method to:  (1) identify the contract(s) with clients; (2) identify the performance obligation(s) in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligation(s) in the contract; and (5) recognize revenue when (or as) we determine thatsatisfy the following criteria are met: (i) persuasive evidence of an arrangement exists; (ii) delivery has occurred or services have been rendered; (iii) the fee is fixed or determinable; and (iv) collectability is reasonably assured.

performance obligation(s).

Services Revenue: We provide a variety of services to clients in the oil and gas industry. Where services are provided related to the testing and analysis of rock and fluids, we recognize revenue upon the provision of the test results or analysis to the client. For our design, field engineering and completion diagnostic services, we recognize revenue upon the delivery of those services at the well site.site or delivery of diagnostic data. In the case of our consortiumconsortia studies, we have multiple performance obligations and revenue is recognized at the point in time when the reservoir model solution is presentedtesting and analysis results on each contributed core are made available to our clients.consortia members. We conduct testing and provide analysis services in support of our consortiumconsortia studies recognizing revenue as the testing and analysis results are made available to our consortiumconsortia members.

Product Sales Revenue: We manufacture equipment that we sell to our clients in the oil and gas well industry. Revenue is recognized when title to that equipment passes to the client, which is typically when the product is shipped to the client or picked up by the client at our facilities, as set out in the contract.

All

For arrangements that include multiple performance obligations, we allocate revenue to each performance obligation based on estimates of the price that we would charge the client for each promised service or product if it were sold on a standalone basis.

To a lesser extent in all of our business segments, we enter into other types of contracts including service arrangements and non-subscription software and licensing agreements. We recognize revenue for these arrangements over time or at a point in time depending on our evaluation of when the client obtains control of the promised services or products.

Prior to our adoption of Topic 606 effective January 1, 2018, we recognized revenue when we determined the following criteria were met: (i) persuasive evidence of an arrangement exists; (ii) delivery has occurred or services have been rendered; (iii) the fee is fixed or determinable; and (iv) collectability is reasonably assured. The adoption of Topic 606 did not result in any material changes to our revenue recognition policies nor to our consolidated financial statements.

Contract Assets and Liabilities

Contract assets and liabilities result due to the timing of revenue recognition, billings and cash collections.

Contract assets include our right to payment for goods and services already transferred to a customer when the right to payment is conditional on something other than the passage of time, for example contracts where we recognize revenue over time but do not have a contractual right to payment until we complete the performance obligations. Contract assets are included in our accounts receivable and are not material as of December 31, 2019.

Contract liabilities consist of advance client payments received and billings in excess of revenue recognized. We generally receive up-front payments relating to our consortia studies; we recognize revenue over the life of the study as the testing and analysis results are classifiedmade available to our consortia members. We record billings in excess of revenue recognized for contracts with a duration less than twelve months as unearned revenue. We classify contract liabilities for contracts with a duration greater than twelve months as current or non-current based on the timing of when we expect to recognize revenue. The current portion of contract liabilities is included in unearned revenue until services are performed and the non-current portion of contract liabilities is included in other long-term liabilities in our Consolidated Balance Sheet. The total balance of our contract liabilities at December 31, 2019 and 2018 was $4.9 million and $7.4 million, respectively.

Disaggregation of Revenue

We contract with clients for service revenue and/or product title is transferred.

sales revenue. We present revenue disaggregated by services and product sales in our Consolidated Statements of Operations. For revenue disaggregated by reportable segment, see Note 20 - Segment Reporting.

Foreign Currencies

Our functional currency is the U.S. Dollar ("USD"). All inter-company financing, transactions and cash flows of our subsidiaries are transacted in USD. Our foreign entities remeasure monetary assets and liabilities to USD at year-end exchange rates, while non-monetary items are measured at historical rates. Revenue and expenses are remeasured at the applicable month-end rate, except for depreciation, amortization and certain components of cost of sales, which are measured at historical rates. For the yearyears ended December 31, 2016,2019, 2018 and 2017, we incurred a net remeasurement losslosses of approximately $1.8$1.7 million,, while in the year ended December 31, 2015, we incurred a net remeasurement loss of approximately $4.5 $2.6 million,, and a net remeasurement loss of approximately $4.2$1.0 million, in the year ended December 31, 2014. respectively. These amounts were included in Other (Income) Expense, net in the accompanying Consolidated Statements of Operations.

Pensions and Other Postretirement Benefits

We provide a non-contributory defined benefit pension plan covering substantially all of our Dutch employees ("Dutch Plan") who were hired prior to 2007.2000. As required by current accounting standards, we recognize net periodic pension costs associated with the Dutch plan in income from current operations and recognize the unfunded status of the plan, if any, as a long-term liability. In addition, we recognize as a component of other comprehensive income, the gains or losses and prior

service costs or credits that arise during the period but are not recognized as components of net periodic pension cost. The projection of benefit obligation and fair value of plan assets requires the use of assumptions and estimates. Actual results could differ from those estimates. See Note 1012 - Pension and Other Postretirement Benefit Plans.

Furthermore, we maintain defined contribution plans for the benefit of eligible employees primarily in Canada, Thethe Netherlands, the United Kingdom.Kingdom and the United States. We expense these contributions in the period the contribution is made.

Non-controlling Interests

We maintain non-controlling interests in several investment ventures and disclose such interests clearly as a portion of equity separate from the parent's equity. The amount of consolidated net income attributable to these non-controlling interests mustis also be clearly presented on the Consolidated Statements of Operations. In addition, when a subsidiary is deconsolidated, any retained non-controlling equity investment in the former subsidiary will be initially measured at fair value and recorded as a gain or loss.

Stock-Based Compensation

We have two2 stock-based compensation plans, as described in further detail in Note 1315 - Stock-Based Compensation. For new awards issued and awards modified, repurchased or canceled, the compensation expense is equal to the fair value of the award at the date of the grant and is recognized in the Consolidated Statements of Operations for those awards earned over the requisite service period of the award.

Earnings Per Share

We compute basic earnings per common share by dividing net income attributable to Core Laboratories N.V. by the weighted average number of common shares outstanding during the period. Diluted earnings per common and potential common share include additional shares in the weighted average share calculations associated with the incremental effect of dilutive employee stock options, restricted stock awards and contingently issuable shares, as determined using the treasury stock method. The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share for the years ended December 31, 2019, 2018 and 2017 (in thousands):

		2019				2018				2017
Weighted average basic common shares outstanding			44,357				44,206				44,153
Effect of dilutive securities:
Performance shares			242				221				69
Restricted stock			47				47				42
Weighted average diluted common and potential common shares outstanding			44,646				44,474				44,264

3.  CONTRACT ASSETS AND LIABILITIES

The balance of contract assets and contract liabilities consisted of the following at December 31, 2019 and 2018 (in thousands):

		2019				2018
Contract assets
Current		$	2,183			$	1,145
Non-Current			244				188
		$	2,427			$	1,333
Contract Liabilities
Current		$	4,473			$	5,963
Non-current			383				1,401
		$	4,856			$	7,364

	For the Years Ended December 31,
	2016			2015			2014
Weighted average basic common shares outstanding	43,479			42,747			44,362
Effect of dilutive securities:
Performance shares	127			98			110
Restricted stock	64			63			128
Weighted average diluted common and potential   common shares outstanding	43,670			42,908			44,600

Estimate of when contract liabilities will be recognized
within 12 months		$	4,473
within 12 to 24 months		$	383
greater than 24 months		$	—

3. ACQUISITIONS

We had no significant acquisitions duringdid 0t recognize any impairment losses on our receivables and contract assets for the year ended December 31, 2016.

2019.

4.  ACQUISITIONS

In 2015,2018, we acquired a business providing additional reservoir fluidsdownhole technologies associated with perforating systems for $48.9 million in cash. These downhole technologies will significantly enhance Core Lab's Production Enhancement operations and its ability to bring new and innovative product offerings to our clients. We have determined the fair value of tangible assets acquired to be $4.1 million, and intangible assets, including patents, customer-relationship benefits, non-compete agreements and technology which wasto be $9.4 million. We have accounted for this acquisition by allocating the purchase price to the net assets acquired based on their estimated fair valuesvalue at the date of acquisition. acquisition which resulted in an increase to goodwill of $35.4 million. The acquisition is included in the Production Enhancement business segment.

The acquisition of this entitybusiness did not have a material impact on our Consolidated Balance Sheets or Consolidated Statements of Operations,Operations.

We had no significant acquisitions during the years ended December 31, 2019 and was recorded in the Reservoir Description business segment.

4.2017.

5.  INVENTORIES

Inventories consisted of the following at December 31, 20162019 and 20152018 (in thousands):

		2019				2018
Finished goods		$	26,507			$	26,636
Parts and materials			21,419				13,704
Work in progress			2,237				5,324
Total inventories		$	50,163			$	45,664

			2016				2015
Finished goods			$	21,635			$	25,778
Parts and materials			11,185				12,637
Work in progress			900				2,491
Total inventories			$	33,720			$	40,906

We include freight costs incurred for shipping inventory to our clients in the Cost of product sales caption in the accompanying Consolidated Statements of Operations.

5.

6.  PROPERTY, PLANT AND EQUIPMENT, NET

The components of property, plant and equipment, net were as follows at December 31, 20162019 and 20152018 (in thousands):

		2019				2018
Land		$	11,435			$	11,383
Building and leasehold improvements			116,306				115,875
Machinery and equipment			277,952				272,916
Total property, plant and equipment			405,693				400,174
Less - accumulated depreciation			(282,187	)			(277,257	)
Property, plant and equipment, net		$	123,506			$	122,917

7.  LEASES

We have operating leases primarily consisting of offices and lab space, machinery and equipment and vehicles. The components of lease expense are as follows (in thousands):

		2019
Operating lease expense		$	18,639
Short-term lease expense			1,228
Variable lease expense			920
Total lease expense		$	20,787
Other Information:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		$	18,195
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases		$	11,688
Weighted-average remaining lease term - finance leases		1.96 years
Weighted-average discount rate - finance leases			2.42	%
Weighted-average remaining lease term - operating leases		9.07 years
Weighted-average discount rate - operating leases			4.94	%

Scheduled minimum rental commitments under non-cancellable operating leases at December 31, 2019, consist of the following (in thousands):

		Operating Leases
2020		$	15,395
2021			12,936
2022			11,451
2023			9,722
2024			7,666
Thereafter			38,033
Total undiscounted lease payments		$	95,203
Less: Imputed interest			(18,702	)
Total lease liabilities		$	76,501

The Company has elected to apply the short-term lease exemption to all classes of underlying assets. Accordingly, no ROU asset or lease liability is recognized for leases with a term of twelve months or less.

The Company has elected to apply the practical expedient for combining lease and non-lease components for vehicle leases and elected not to apply the practical expedient for combining lease and non-lease components to all other classes of underlying assets.

We adopted ASU 2017-06 using the cumulative effect transition method on January 1, 2019. As required, the following disclosure is provided for periods prior to adoption. Scheduled minimum rental commitments under non-cancellable operating leases at December 31, 2018, consist of the following (in thousands):

			2016				2015
Land			$	7,883			$	7,894
Building and leasehold improvements			114,522				111,740
Machinery and equipment			256,742				263,858
Total property, plant and equipment			379,147				383,492
Less - accumulated depreciation			(249,265		)		(240,281		)
Property, plant and equipment, net			$	129,882			$	143,211

	Operating Leases
2019	$	16,267
2020		12,572
2021		9,774
2022		7,955
2023		4,938
Thereafter		14,815
Total commitments	$	66,321

6.

Operating lease commitments relate primarily to rental of equipment and office space. Rental expense for operating leases, including amounts for short-term leases with nominal future rental commitments, was $20.8 million and $20.9 million for the years ended December 31, 2018 and 2017, respectively.

8.  INTANGIBLES, NET

The components of intangibles, net as of December 31, 20162019 and 20152018 are as follows (in thousands):

				2019								2018
		Original life		Gross Carrying				Accumulated				Gross Carrying				Accumulated
		in years		Value				Amortization				Value				Amortization
Acquired trade secrets		2-20		$	3,613			$	2,463			$	3,604			$	2,110
Acquired patents, technology and trademarks		4-15			15,622				4,193				9,697				3,115
Agreements not to compete		2-5			1,149				919				1,149				759
Acquired trade names		Indefinite			4,641				—				4,588				—
Total intangibles, net				$	25,025			$	7,575			$	19,038			$	5,984

				2016								2015
		Original life in years		Gross Carrying Value				Accumulated Amortization				Gross Carrying Value				Accumulated Amortization
Acquired trade secrets		2-20		$	3,390			$	1,405			$	3,065			$	1,086
Acquired patents and trademarks		4-10		5,043				1,809				7,869				4,677
Agreements not to compete		3-5		839				690				894				586
Acquired trade names		Indefinite		4,568				—				4,562				—
Total intangibles, net				$	13,840			$	3,904			$	16,390			$	6,349

Our estimated amortization expense relating to these intangibles for the next five years is summarized in the following table (in thousands):

2020		$	1,491
2021		$	1,279
2022		$	1,254
2023		$	990
2024		$	982

2017	$	1,008
2018	$	967
2019	$	861
2020	$	703
2021	$	613

7.

9.  GOODWILL

The changes in the carrying amount of goodwill for each reportable segment for the years ended December 31, 2016,2019 and 20152018 were as follows (in thousands):

		Reservoir				Production
		Description				Enhancement				Total
Balance at December 31, 2017		$	99,484			$	79,560			$	179,044
Goodwill allocated to discontinued operations			—				(915	)			(915	)
Goodwill acquired during the year			—				41,283				41,283
Balance at December 31, 2018			99,484				119,928				219,412
Goodwill acquired during the year			—				—				—
Adjustments to goodwill acquired in previous year			—				(5,987	)			(5,987	)
Balance at December 31, 2019		$	99,484			$	113,941			$	213,425

		Reservoir Description				Production Enhancement				Reservoir Management				Total
Balance at December 31, 2014		$	82,059			$	79,560			$	2,845			$	164,464
Goodwill acquired during the year		13,695				—				—				13,695
Balance at December 31, 2015		95,754				79,560				2,845				178,159
Goodwill acquired during the year		885				—				—				885
Balance at December 31, 2016		$	96,639			$	79,560			$	2,845			$	179,044

8.

10.  LONG-TERM DEBT, NET

We have no capital0 finance lease obligations. Debt at December 31, 20162019 and 20152018 is summarized in the following table (in thousands):

		2019				2018
Senior Notes		$	150,000			$	150,000
Credit Facility			157,000				142,000
Total debt			307,000				292,000
Less: Debt issuance costs			(1,717	)			(2,230	)
Long-term debt, net		$	305,283			$	289,770

	December 31, 2016				December 31, 2015
Senior Notes	$	150,000			$	150,000
Credit Facility	68,000				283,000
Other indebtedness	—				2,244
Total debt	218,000				435,244
Less: Short-term debt included in other indebtedness	—				(2,244		)
Less: Debt issuance costs	(1,512		)		(2,013		)
Long-term debt, net	$	216,488			$	430,987

In 2011, we issued two2 series of senior notes with an aggregate principal amount of $150$150 million ("Senior Notes") in a private placement transaction. Series A consists of $75$75 million in aggregate principal amount of notes that bear interest at a

fixed rate of 4.01% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.01%4.11% and are due in full on September 30, 2021. Series B consists of $75 million in aggregate principal amount of notes that bear interest at a fixed rate of 4.11% and are due in full on September 30, 2023.2023. Interest on each series of the Senior Notes is payable semi-annually on March 30 and September 30.

In 2015, we entered into

The aggregate borrowing commitment under our revolving credit facility (the “Credit Facility”) is $300 million. The Credit Facility provides an agreement to amend our Credit Facilityoption to increase the aggregate borrowing capacity from $350 million to $400 million and to keepcommitment under the uncommitted availability ofCredit Facility by an additional $50$100 million to bring the total borrowings available to $450$400 million if certain prescribed conditions are met by the Company. The Credit Facility bears interest at variable rates from LIBOR plus 1.25%1.375% to a maximum of LIBOR plus 2.0%2%.

Any outstanding balance under the Credit Facility is due August 29, 2019,June 19, 2023, when the Credit Facility matures. Interest payment terms are variable depending upon the specific type of borrowing under this facility. Our available capacity at any point in time is subject to all terms of the agreements, and is reduced by borrowings outstanding at the time and outstanding letters of credit which totaled $25.8$14.9 million at December 31, 2016,2019, resulting in an available borrowing capacity under the Credit Facility of $306.2$128.1 million. In addition to those items under the Credit Facility, we had $15.0$5.8 million of outstanding letters of credit and performance guarantees and bonds from other sources as of December 31, 2016.

2019.

The terms of the Credit Facility and Senior Notes require us to meet certain covenants, including, but not limited to, an interest coverage ratio (consolidated EBITDA divided by interest expense) and a leverage ratio (consolidated net indebtedness divided by consolidated EBITDA), where consolidated EBITDA (as defined in each agreement) and interest expense are calculated using the most recent four fiscal quarters. The Credit Facility has the more restrictive covenants with a minimum interest coverage ratio of 3.0 to 1.0 and a maximum leverage ratio of 2.5 to 1.0. We believe that we are in compliance with all such covenants contained in our credit agreements. Certain of our material, wholly-owned subsidiaries are guarantors or co-borrowers under the Credit Facility and Senior Notes.

In 2014, we entered into two2 interest rate swap agreements to hedge changes in the variable interest rate on our LIBOR-priced debt.debt, one of which expired in 2019. See Note 1416 - Derivative Instruments and Hedging Activities for discussion of our derivative instruments.

Other indebtedness at December 31, 2015 includes approximately $2.2 million of debt incurred relating to the financing of our corporate insurance. We did not finance our corporate insurance in 2016.

The estimated fair value of total debt at December 31, 20162019 and 20152018 approximated the book value of total debt. The fair value was estimated using Level 2 inputs by calculating the sum of the discounted future interest and principal payments through the date of maturity.

9.

11.  INCOME TAXES

The components of income before income tax expense for 2016, 2015the years ended December 31, 2019, 2018 and 20142017 are as follows (in thousands):

		2019				2018				2017
United States		$	61,374			$	61,680			$	28,632
Other countries			20,620				43,614				70,602
Income before income tax expense		$	81,994			$	105,294			$	99,234

		2016				2015				2014
United States		$	34,723			$	55,143			$	154,943
Other countries		39,884				93,547				180,988
Income before income tax expense		$	74,607			$	148,690			$	335,931

The components of income tax expense for 2016, 2015the years ended December 31, 2019, 2018 and 20142017 are as follows (in thousands):

		2019				2018				2017
Current:
United States		$	8,786			$	13,198			$	10,699
Other countries			13,267				10,132				9,147
State and provincial			(28	)			1,548				725
Total current			22,025				24,878				20,571
Deferred:
United States		$	(57,250	)		$	(1,340	)		$	(2,948	)
Other countries			23,558				1,909				626
State and provincial			(623	)			—				—
Total deferred			(34,315	)			569				(2,322	)
Income tax expense (benefit)		$	(12,290	)		$	25,447			$	18,249

				2016				2015				2014
Current:
United States				$	(2,469	)		$	17,257			$	44,350
Other countries				16,533				14,629				23,546
State and provincial				600				1,979				4,727
Total current				14,664				33,865				72,623
Deferred:
United States				1,844				(2,905		)		2,801
Other countries				(5,845		)		2,947				1,675
State and provincial				85				(149		)		206
Total deferred				(3,916		)		(107		)		4,682
Income tax expense				$	10,748			$	33,758			$	77,305

The differences in income tax expense computed using Thethe Netherlands statutory income tax rate of 25%, 25% and 25% in 2016, 2015 and 2014, respectively, and our income tax expense (benefit) as reported in the accompanying Consolidated Statements of Operations for 2016, 2015the years ended December 31, 2019, 2018 and 20142017 are as follows (in thousands):

		2016				2015				2014
Tax at The Netherlands income tax rate		$	18,652			$	37,173			$	83,983
International earnings taxed at rates other than     The Netherlands statutory rate		(16,840		)		(14,066		)		(6,721		)
Non-deductible expenses		2,936				2,832				2,807
Change in valuation allowance		(899		)		3,625				1,150
State and provincial taxes		600				1,133				3,339
Adjustments of prior year taxes		2,412				483				(2,973		)
Adjustments of income tax reserves		(604		)		(1,205		)		(1,570		)
Foreign exchange		3,381				4,358				1,659
Other		1,110				(575		)		(4,369		)
Income tax expense		$	10,748			$	33,758			$	77,305

		2019				2018				2017
Tax at the Netherlands income tax rate		$	22,895			$	26,189			$	25,427
International earnings taxed at rates other than the    Netherlands statutory rate			(1,343	)			(14,997	)			(12,496	)
Non-deductible expenses			3,516				4,452				6,645
Change in valuation allowance			(3,491	)			1,513				(1,744	)
State and provincial taxes			(825	)			1,566				829
Tax credits			(3,893	)			(3,939	)			218
Benefit from corporate restructuring			(59,336	)			—				—
Unremitted earnings of subsidiaries			26,126				—				—
Adjustments of prior year taxes			(1,684	)			2,350				(4,272	)
Adjustments of income tax reserves			1,084				(1,613	)			1,869
Foreign exchange			2,014				5,936				(1,792	)
Accrued withholding taxes			2,603				2,911				3,067
Other			44				1,079				498
Income tax expense (benefit)		$	(12,290	)		$	25,447			$	18,249

Deferred tax assets and liabilities result from various temporary differences between the financial statement carrying amount and their tax basis. Deferred tax assets and liabilities as of December 31, 20162019 and 20152018 are summarized as follows (in thousands):

		2019				2018
Deferred tax assets:
Net operating loss carry-forwards		$	7,209			$	6,300
Tax credit carry-forwards			1,888				1,154
Accruals for compensation			8,240				7,160
Accruals for inventory capitalization			1,788				1,813
Unrealized benefit from corporate restructuring			56,985				—
Unrealized benefit plan loss			3,740				3,417
Unrealized foreign exchange			3,842				7,542
Unearned revenue			1,849				2,760
Other			1,839				822
Total deferred tax assets			87,380				30,968
Valuation allowance (1)			(6,241	)			(9,732	)
Net deferred tax assets			81,139				21,236
Deferred tax liabilities:
Intangibles			(6,263	)			(6,025	)
Property, plant and equipment			(3,546	)			(2,835	)
Accrued interest			(1,679	)			(3,260	)
Accrued withholding taxes			(26,718	)			(886	)
Unrealized foreign exchange			(2,653	)			(4,043	)
Other			(306	)			(569	)
Total deferred tax liabilities			(41,165	)			(17,618	)
Net deferred income taxes		$	39,974			$	3,618
(1) Valuation allowance at 12/31/17 was 8.2 million.

		2019				2018
Long-term deferred tax assets		$	67,312			$	11,252
Long-term deferred tax liabilities			(27,338	)			(7,634	)
Total deferred tax assets (liabilities)		$	39,974			$	3,618

				2016				2015
Deferred tax assets:
Net operating loss carry-forwards				$	9,885			$	8,045
Tax credit carry-forwards				2,925				934
Accruals for compensation				14,573				14,937
Accruals for inventory capitalization				2,587				2,738
Unrealized benefit plan loss				4,931				5,571
Unrealized foreign exchange				7,221				7,994
Other				3,208				3,247
Total deferred tax assets				45,330				43,466
Valuation allowance (1)				(9,963		)		(10,862		)
Net deferred tax asset				35,367				32,604
Deferred tax liabilities:
Intangibles				(7,061		)		(5,876		)
Property, plant and equipment				(5,774		)		(8,372		)
Accrued interest				—				(10,111		)
Unrealized foreign exchange				(4,206		)		(6,421		)
Other				(3,998		)		(1,579		)
Total deferred tax liabilities				(21,039		)		(32,359		)
Net deferred income taxes				$	14,328			$	245
				2016				2015
Current deferred tax assets				$	—			$	3,164
Current deferred tax liabilities				—				(9,731		)
Long-term deferred tax assets				20,605				11,693
Long-term deferred tax liabilities				(6,277		)		(4,881		)
Total deferred tax assets (liabilities)				$	14,328			$	245
(1) Valuation allowance at 12/31/14 was $7.2 million.

In 2019, we completed a corporate restructuring transaction which resulted in a net tax benefit of $60.7 million, and recognized tax expense of $26.7 million related to unremitted earnings of foreign subsidiaries that we no longer consider to be indefinitely reinvested. We have not provided for deferred taxes on the unremitted earnings of certain subsidiaries that we consider to be indefinitely reinvested. Should we make a distribution of the unremitted earnings of these subsidiaries, we may

be required to record additional taxes. As of December 31, 2016,2019, we consider $281.0$4.3 million to be indefinitely reinvested. Repatriation of these earnings would be subject to income and withholding taxes estimated at approximately $26.6less than $0.1 million. There are no restrictions preventing any of our subsidiaries from repatriating earnings, and there are no restrictions or income taxes associated with distributing cash to the parent company through loans or advances.

At December 31, 2016,2019, we had tax net operating loss carry-forwards in various tax jurisdictions of approximately $38.8 million.$31.9 million. Although we cannot be certain that these operating loss carry-forwards will be utilized, we anticipate that we will have sufficient taxable income in future years to allow us to fully utilize the carry-forwards that are not subject to a valuation allowance. As of December 31, 2016,2019, if unused, $3.5$12.4 million will expire between 2017-2019, $5.02020 and 2022, $3.2 million will expire between 2020-2022, $22.02023 and 2025, $2.8 million will expire between 2023-20262026 and $4.62029 and $0.2 million will expire beyond 2026.2029. The remaining balance of $3.7$13.3 million is not subject to expiration. During 2016, $0.12019, less than $0.5 million of net operating loss carry-forwards, which carried a full valuation allowance, expired unused.

We file income tax returns in the U.S. federal jurisdiction, various states and foreign jurisdictions. We are currently undergoing multiple examinations in various jurisdictions, and the years 19992001 through 20152018 remain open for examination in various tax jurisdictions in which we operate. The ultimate settlement and timing of these additional tax assessments is uncertain but the Company will continue to vigorously defend its return filing position and does not view the assessments as probable at this time.

During 2016,2019, adjustments were made to estimates for uncertain tax positions in certain tax jurisdictions based upon changes in facts and circumstances, resulting in a reduction to the unrecognized tax benefits. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

		2019				2018				2017
Unrecognized tax benefits at January 1,		$	7,471			$	10,124			$	8,557
Tax positions, current period			495				543				3,472
Tax positions, prior period			(361	)			(304	)			180
Settlements with taxing authorities			(18	)			(2,207	)			(1,154	)
Lapse of applicable statute of limitations			(286	)			(685	)			(931	)
Unrecognized tax benefits at December 31,		$	7,301			$	7,471			$	10,124

	2016				2015				2014
Unrecognized tax benefits at January 1,	$	9,964			$	11,747			$	12,385
Tax positions, current period	983				1,044				1,441
Tax positions, prior period	83				(640		)		56
Settlements with taxing authorities	(1,657		)		(1,371		)		(947		)
Lapse of applicable statute of limitations	(816		)		(816		)		(1,188		)
Unrecognized tax benefits at December 31,	$	8,557			$	9,964			$	11,747

Changes in our estimate of, or the recognition of, the unrecognized tax benefits shown in the table above would affect our effective tax rate.

Our policy is to record accrued interest and penalties on uncertain tax positions, net of any tax effect, as part of total tax expense for the period. The corresponding liability is carried along with the tax exposure as a non-current payable in Other Long-term Liabilities. For the years ended December 31, 2016, 20152019, 2018 and 2014,2017, we recognized approximately$1.3 million, $0.6 million $(0.5) million and $(1.1)$0.6 million, respectively, in interest and penalties. For the years ended December 31, 2016, 20152019, 2018 and 2014,2017, we had approximately $2.7$5.1 million,, $2.0 $3.9 million and $2.5$3.3 million,, respectively, accrued for the payment of interest and penalties. Changes in our estimate of unrecognized tax benefits would affect our effective tax rate. As of December 31, 2016, 2015,2019, 2018 and 2014,2017 there are $1.2$0.9 million, $2.4$0.6 million and $0.8$1.8 million, respectively, of unrecognized tax benefits that could be resolved within the next twelve months which could have a positive effect on the annual effective tax rate.

10.

12.  PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

Defined Benefit Plan

We provide a noncontributory defined benefit pension plan covering substantially all of our Dutch employees ("Dutch Plan") who were hired prior to 2007.2000. This pension benefit is based on years of service and final pay or career average pay depending on when the employee began participating. The benefits earned by the employees are immediately vested. We fund the future obligations of the Dutch Plan by purchasing an insurance contractscontract from a large multi-national insurance company. The insurance contracts havecompany with a five-year maturity. Each year as a contract expires, it is replaced with a new contract that is adjusted to include changes in the benefit obligation for the current year and redemption of the expired contract. Wewe make annual premium payments to the insurance company (1) to provide for the benefit obligation of the current year of service based on each employee's age, gender and current salary, and (2) for the contractual growth rate.changes in the benefit obligation for prior years of service due to changes in participants' salary. We determine the fair value of these plan assets with the assistance of an actuary using observable inputs (Level 2), which approximates the contract value of the investments.

During 2019 and 2018, there was a curtailment of the Dutch Plan for our Dutch employees whose pension benefit was based on years of service and final pay or career average pay, depending on when the employee began participating. These employees have been moved into the Dutch defined contribution plan. This event resulted in a curtailment gain of $2.6 million and $1.2 million as of December 31, 2019 and 2018, respectively. However, the unconditional indexation for this group of participants remains as long as they stay in active service for the company.

The following table summarizes the change in the projected benefit obligation and the fair value of plan assets for the Dutch Plan for the years ended December 31, 20162019 and 20152018 (in thousands):

		2019				2018
Projected Benefit Obligation:
Projected benefit obligation at beginning of year		$	60,671			$	63,398
Service cost			755				1,453
Prior service cost			—				(157	)
Interest cost			1,027				1,244
Amendments/curtailments			(2,621	)			(1,219	)
Benefits paid and administrative expenses			(1,229	)			(1,349	)
Actuarial (gain) loss, net			7,979				(383	)
Unrealized (gain) loss on foreign exchange			(1,336	)			(2,316	)
Projected benefit obligation at end of year		$	65,246			$	60,671
Fair Value of Plan Assets:
Fair value of plan assets at beginning of year		$	53,273			$	53,145
Increase in plan asset value			6,905				2,251
Employer contributions			1,558				1,282
Benefits paid and administrative expenses			(1,246	)			(1,386	)
Unrealized gain (loss) on foreign exchange			(1,172	)			(2,019	)
Fair value of plan assets at end of year		$	59,318			$	53,273
Under-funded status of the plan at end of the year		$	(5,928	)		$	(7,398	)
Accumulated Benefit Obligation			65,246			$	55,863

	2016				2015
Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	50,759			$	59,338
Service cost	1,456				1,787
Interest cost	1,329				1,192
Benefits paid	(1,139		)		(982		)
Administrative expenses	(31		)		(169		)
Actuarial (gain) loss, net	5,225				(4,416		)
Unrealized (gain) loss on foreign exchange	(1,517		)		(5,991		)
Projected benefit obligation at end of year	$	56,082			$	50,759
Fair Value of Plan Assets:
Fair value of plan assets at beginning of year	$	41,116			$	47,528
Increase (decrease) in plan asset value	6,328				(2,279		)
Employer contributions	1,118				1,829
Benefits paid	(1,139		)		(982		)
Administrative expenses	(31		)		(169		)
Unrealized gain (loss) on foreign exchange	(1,258		)		(4,811		)
Fair value of plan assets at end of year	$	46,134			$	41,116
Under-funded status of the plan at end of the year	$	(9,948	)		$	(9,643	)
Accumulated Benefit Obligation	$	47,980			$	43,969

The following actuarial assumptions were used to determine the actuarial present value of our projected benefit obligation and the net periodic pension costs for the Dutch Plan at December 31, 20162019 and 2015:2018:

		2019				2018
Weighted average assumed discount rate			1.05	%			1.75	%
Expected long-term rate of return on plan assets			1.05	%			1.75	%
Weighted average rate of compensation increase			1.80	%			2.80	%

	2016		2015
Weighted average assumed discount rate	1.90%		2.60%
Expected long-term rate of return on plan assets	1.90%		2.60%
Weighted average rate of compensation increase	2.75%		3.00%

The discount rate used to determine our projected benefit obligation at December 31, 20162019 was decreased from 2.60%1.75% to 1.90%1.05%, consistent with a general decrease in interest rates in Europe for AAA-rated long-term Euro government bonds.

Amounts recognized for the Dutch Plan in the Consolidated Balance Sheets for the years ended at December 31, 20162019 and 20152018 consist of (in thousands):

		2019				2018
Deferred tax asset			1,482			$	4,369
Other long-term liabilities			5,928				7,398
Accumulated other comprehensive loss			(5,640	)			(5,650	)

	2016				2015
Deferred tax asset	$	2,328			$	2,660
Other long-term liabilities	9,948				9,643
Accumulated other comprehensive loss	(9,169		)		(9,540		)

The components of net periodic pension cost for the Dutch Plan under this plan for the years ended December 31, 2016, 2015,2019, 2018 and 20142017 included (in thousands):

		2019				2018				2017
Service cost		$	755			$	1,453			$	1,494
Interest cost			1,027				1,244				1,121
Expected return on plan assets			(914	)			(1,077	)			(950	)
Administrative charges			17				37				—
Curtailment			(2,621	)			(1,219	)			—
Prior service cost			(848	)			(106	)			(77	)
Net actuarial loss			3,171				1,706				440
Net periodic pension cost		$	587			$	2,038			$	2,028

	2016				2015				2014
Service cost	$	1,456			$	1,787			$	1,445
Interest cost	1,329				1,192				1,756
Expected return on plan assets	(1,117		)		(986		)		(1,303		)
Unrecognized pension asset, net	—				(96		)		(87		)
Prior service cost	(81		)		(85		)		7
Unrecognized net actuarial loss	593				727				540
Net periodic pension cost	$	2,180			$	2,539			$	2,358

Plan assets at December 31, 20162019 and 20152018 consisted of insurance contracts with returns equal to the contractual rate, which are comparable with governmental debt securities. Our expected long-term rate of return assumptions are based on the weighted-average contractual rates for each contract. Dutch law dictates the minimum requirements for pension funding. Our goal is to meet these minimum funding requirements, while our insurance carrier invests to minimize risks associated with future benefit payments.

Our 20172020 minimum funding requirements are expected to be approximately $1.5 million.$0.7 million. Our estimate of future annual contributions is based on current funding and the unconditional indexation requirements, and we believe these contributions will be sufficient to fund the plan.

Expected benefit payments to eligible participants under this plan for the next five years are as follows (in thousands):

2020		$	1,310
2021		$	1,394
2022		$	1,477
2023		$	1,518
2024		$	1,634
Succeeding five years		$	9,988

2017	$	1,118
2018	$	1,156
2019	$	1,169
2020	$	1,275
2021	$	1,356
Succeeding five years	$	8,147

Defined Contribution Plans

We maintain defined contribution plans for the benefit of eligible employees primarily in Canada, Thethe Netherlands, the United Kingdom, and the United States. In accordance with the terms of each plan, we and our participating employees contribute up to specified limits and under certain plans, we may make discretionary contributions in accordance with the defined contribution plans. Our primary obligation under these defined contribution plans is limited to paying the annual contributions. For the years ended December 31, 2016, 20152019, 2018 and 2014,2017, we paid approximately $6.1$5.3 million,, $6.9 $4.3 million and $7.9$4.2 million, respectively, for our contributions and our additional discretionary contributions to the defined contribution plans.

Vesting in all employer contributions is accelerated upon the death of the participant or a change in control. Employer contributions under the plans are forfeited upon a participant’s termination of employment to the extent they are not vested at that time.

Deferred Compensation Arrangements

We have entered into deferred compensation contracts for certain key employees to provide additional retirement income to the participants. The benefit is determined by the contract for either a fixed amount or by a calculation using years of service or age at retirement along with the average of their base salary for the five years prior to retirement. We are not required to fund this arrangement; however, we have purchased life insurance policies with cash surrender values to assist us in providing the benefits pursuant to these deferred compensation contracts with the actual benefit payments made by Core Laboratories. The charge to expense for these deferred compensation contracts in 2016, 20152019, 2018 and 20142017 was approximately $1.2$2.0 million,, $1.7 $1.2 million and $1.9$1.4 million, respectively.

We provide severance compensation to certain current key employees if employment is terminated under certain circumstances, such as following a change in control or for any reason other than upon their death or disability, for “cause” or upon a material breach of a material provision of their employment agreement, as defined in their employment agreements. In

addition, there are certain countries where we are legally required to make severance payments to employees when they leave our service. We have accrued for all of these severance payments, but they are not funded.

We have also adopted a non-qualified deferred compensation plan (“Deferred Compensation Plan”) that allows certain highly compensated employees to defer a portion of their salary, commission and bonus, as well as the amount of any reductions in their deferrals under the Deferred Compensation Plan for employees in the United States, due to certain limitations imposed by the U.S. Internal Revenue Code of 1986, as amended (the “Code”). Contributions to the plan are invested in equity and other investment fund assets, and carried on the balance sheet at fair value. The benefits under these contracts are fully vested. Our primary obligation for the Deferred Compensation Plan is limited to our annual contributions. Employer contributions to the Deferred Compensation Plan were $0.2 millionfor the yearyears ended December 31, 20162019, 2018 and $0.32017 were $0.1 million, for each of the years ended December 31, 2015$0.1 million, and 2014.

$0.1 million, respectively.

Vesting in all employer contributions is accelerated upon the death of the participant or a change in control. Employer contributions under the plans are forfeited upon a participant's termination of employment to the extent they are not vested at that time.

11.

13.  COMMITMENTS AND CONTINGENCIES

We have been and may from time to time be named as a defendant in legal actions that arise in the ordinary course of business. These include, but are not limited to, employment-related claims and contractual disputes or claims for personal injury or property damage which occur in connection with the provision of our services and products. A liability is accrued when a loss is both probable and can be reasonably estimated. During 2015, we recorded contingent liabilities in the amount of $8.6 million associated with these claims. After certain settlements in 2016, we had a contingent liability balance of $7.3 million remaining as of December 31, 2016.

In 1998, we entered into employment agreements with our three3 senior executive officers that provide for certain deferred compensation benefits. NaN of these executive officers retired from the Company on December 31, 2018 and the payment of these deferred compensation benefits was made in 2019. The present value of the long-term liability recorded and fully reserved for the benefits due upon severing the employment ofremaining obligation under these employeesagreements is approximately $8.0$5.5 million at December 31, 2016.

2019, and is recorded as a long term liability.

We do not maintain any off-balance sheet debt or other similar financing arrangements nor have we formed any special purpose entities for the purpose of maintaining off-balance sheet debt.

Scheduled minimum rental commitments under non-cancellable operating leases at December 31, 2016, consist of the following (in thousands):

2017	$	15,514
2018	11,557
2019	8,563
2020	6,330
2021	4,575
Thereafter	15,522
Total commitments	$	62,061

Operating lease commitments relate primarily to rental of equipment and office space. Rental expense for operating leases, including amounts for short-term leases with nominal future rental commitments, was approximately $20.3 million, $22.2 million and $24.1 million for the years ended December 31, 2016, 2015 and 2014, respectively.

12.

14.  EQUITY

Common Shares

On May 17, 2016 we completed a public offering of 1,475,000 shares of our common stock. The purchase price paid by the underwriter was $116.67 per share. On May 26, 2016, the underwriter exercised in full its option to purchase an additional 221,250 shares of common stock at the public offering price of $116.67 per share bringing the total shares issued from the offering to 1,696,250. The net proceeds from these issuances of common stock were $197.2 million, after deducting underwriting discounts and offering expenses. The proceeds were used to repay a portion of the outstanding borrowings under our Credit Facility.

Treasury Shares

In connection with our initial public offering in September 1995, our shareholders authorized our Management Board to repurchase up to 10% of our issued share capital, the maximum allowed under Dutch law at the time, for a period of 18 months. This authorization was renewed at subsequent annual or special shareholder meetings. At our annual shareholders' meeting on May 19, 2016,23, 2019, our shareholders authorized an extension to repurchase up to 10% of our issued share capital through November 19, 2017.23, 2020. The repurchase of shares in the open market is at the discretion of management pursuant to this shareholder authorization. From the activation of the share repurchase program on October 29, 2002 through December 31, 2016,2019, pursuant to shareholder approvals, we have repurchased 39,373,74539,689,999 shares for an aggregate purchase price of approximately $1.6$1.7 billion,, or an average price of $41.20$41.57 per share and have canceled 33,475,406 shares with an historical cost of $1.2 billion.$1.2 billion. At December 31, 2016,2019, we held 644,991330,690 shares in treasury with the authority to repurchase 3,834,6344,148,935 additional shares under our stock repurchase program. Subsequent to year-end, we have repurchased 18920,036 shares at a total cost of approximately $22.8 thousand.

At$0.8 million.

Dividend Policy

In 2008, Core Laboratories announced the annual meetinginitiation of shareholders on May 19, 2016,a cash dividend program. Cash dividends of $0.55 per share were paid each quarter of 2019 and 2018. The declaration and payment of future dividends will be at the shareholders approved the cancellation of 1,250,000 shares of our common stock then held as treasury shares. These treasury shares were canceled on August 2, 2016, after the expirationdiscretion of the waiting period required under Dutch law. In accordance with FASB Accounting Standards Codification ("ASC") 505-30-30-8, we chargedSupervisory Board of Directors and will depend upon, among other things, future earnings, general financial condition, liquidity, capital requirements, and general business conditions. On January 14, 2020, the excess of the cost of the treasury stock over its par value to additional paid-in capital and retained earnings.

Dividend Policy

In February, May, August and November 2016, we paid quarterly dividends of $0.55 per share of common stock. The total dividends paid in 2016 were $95.1 million. On January 10, 2017, weCompany declared a quarterlycash dividend of $0.55$0.25 per share of common stock payable February 17, 201714, 2020 to shareholders of record on January 20, 2017.

24, 2020.

Accumulated Other Comprehensive Income (Loss)

Amounts recognized, net of tax, in Accumulated other comprehensive income (loss) for the years ended at December 31, 20162019 and 20152018 consist of (in thousands):

		2019				2018
Prior service cost		$	—			$	593
Unrecognized net actuarial loss and foreign exchange			(5,640	)			(6,243	)
Fair value of derivatives			(690	)			194
Total Accumulated other comprehensive (loss)		$	(6,330	)		$	(5,456	)

	2016				2015
Prior service cost	$	600			$	661
Unrecognized net actuarial loss and foreign exchange	(9,769		)		(10,201		)
Fair value of derivatives	(659		)		(998		)
Total Accumulated other comprehensive (loss)	$	(9,828	)		$	(10,538	)

Unrecognized amounts currently recorded to Accumulated other comprehensive income (loss) that are

All prior service costs were recognized in 2019 therefore, there is 0 amount expected to be recognized as components of next year's net pension benefit cost include $0.4 million of unrecognized net actuarial loss.

13.in 2020.

15.  STOCK-BASED COMPENSATION

We have granted restricted stock awards under two2 stock incentive plans: the 2014 Long-Term Incentive Plan and the 2014 Nonemployee Director Stock Incentive Plan. Awards under the following twothree compensation programs have been granted pursuant to both plans: (1) the Performance Share Award Program ("PSAP") and; (2) the Restricted Share Award Program ("RSAP") and (3) the Restricted Share Award Program for Nonemployee Directors (the "Program").

We issue shares from either treasury stock or authorized shares upon the lapsing of vesting restrictions on restricted stock. In 2016,2019, we issued 141,106220,417 shares out of treasury stock relating to the vesting of restricted stock. We do not use cash to settle equity instruments issued under stock-based compensation awards.

2014 Long-Term Incentive Plan

On May 13,

In 2014, the 2007 Long-Term Incentive Plan was amended, restated and renamed as the 2014 Long-Term Incentive Plan (the "Plan"). The primary changes effected by the 2014 amendment and restatement were to (a) extend the period during which awards may be granted under the Plan to May 12, 2024, and (b) increase the number of common shares subject to the Plan by 1,100,000 shares. The Plan, as amended, provides for a maximum of 11,900,000 common shares to be granted to eligible employees. At December 31, 2016,2019, approximately 1,214,983472,024 shares remained available for the grant of new awards under the Plan. Specifically, we encourage share ownership by awarding various long-term equity incentive awards under the Plan, consisting of the PSAP and RSAP. We believe that widespread common share ownership by key employees is an important means of encouraging superior performance and employee retention. Additionally, our equity-based compensation programs encourage performance and retention by providing additional incentives for executives to further our growth, development and financial success over a longer time horizon by personally benefiting through the ownership of our common shares and/or rights.

Performance Share Award Program

The PSAP allows us to compensate our executive and senior management teams as we meet or exceed our business objectives. The PSAP shares are unvested and may not be sold, assigned, pledged, hedged, margined or otherwise transferred by an award recipient until such time as, and then only to the extent that, the restricted performance shares have vested. In the event of a change in control (as defined in the Plan) prior to the last day of the Performance Period, all of the award recipient's restricted performance shares will vest as of the effective date of such change in control. Subject to continued employment with us, or upon death or disability, PSAP shares vest if we meet or exceed our business objectives.

The company recorded $7.2 million and $9.9 million of additional non-cash stock compensation expense in the year ended December 31, 2019 and 2018, respectively, associated with the 2019 and 2018 PSAP awards for certain members of our executive management team who became retirement eligible during those years. The additional stock compensation expense has been recorded in accordance with FASB ASC Topic 718, "Compensation - Stock Compensation", which states that the period over which stock compensation expense is recognized should not extend beyond the eligible retirement age as defined in each executive's PSAP award agreement. The PSAP awards continue to remain unvested until the end of the performance period, and it can be determined whether the performance criteria have been achieved. The executive will not forfeit the right to vest in the awarded shares if they voluntarily retire from the Company after attaining the retirement age as defined in each agreement.

On February 13, 2014,14, 2017, certain executives were awarded rights to receive an aggregate of 53,548up to 128,112 common shares if our calculated return on invested capital ("ROIC"),ROIC, as defined in the PSAP, is in the top decile ofachieved certain performance criteria as compared to the Bloomberg Comp Group at the end of the performance period, which endsended on the last trading day of 2016,2019, December 30, 2016. Unless there is a change in control as defined in the PSAP, none of these awards will vest if the specified performance target is not met as of the last day of the performance period.31, 2019. This arrangement iswas recorded as an equity award that requiresrequired us to recognize compensation expense totaling $9.0$13.7 million over the shorter of the 3-year performance period that began on January 1, 2014,or requisite service period, as determined for each participant individually, of which $3.0$0.3 million, $8.7 million and $4.7 million has been recognized annually in 2016, 2015,2019, 2018 and 2014.2017, respectively. At December 30, 2016,31, 2019, the Company had the highest ROIC compared to the Bloomberg Comp Group. The Compensation Committee of our Board of Supervisory Directors verified that the performance target criteria had been met and 51,348 shares vested (2,200 shares were forfeited by participants prior toat the end of the performance period)period and 123,312 shares vested (4,800 shares were previously forfeited). We issued these common shares on December 30, 201631, 2019 and, simultaneously, the participants surrendered 19,40043,136 common shares to settle any personal tax liabilities which may result from the award, as permitted by the agreement. We recorded these surrendered shares as treasury stock with an aggregate cost of $2.3$1.6 million at $120.04$37.67 per share. We have recognized an additional tax liability from the vesting of the PSAP of $1.1 million in 2016.

On February 10, 2015,13, 2018, certain executives were awarded rights to receive an aggregate of 106,455up to 162,772 common shares if our calculated ROIC, as defined in the PSAP, is in the top decile ofachieves certain performance criteria as compared to the Bloomberg Comp Group at the end of the performance period, which ends on the last trading day of 2017,2020, December 29, 2017. Unless there is a change in control as defined in the PSAP, none of these awards will vest if the specified performance target is not met as of the last day of the performance period.31, 2020. This arrangement is recorded as an equity award that requires us to recognize compensation expense totaling $11.3$16.0 million over the shorter of the 3-year performance period that began on January 1, 2015,or requisite service period, as determined for each participant individually, of which $3.8$3.0 million and $11.4 million has been recognized annually in 20162019 and 2015.2018, respectively. The unrecognized compensation expense is expected to be recognized over an estimated amortization period of 12 months.

On February 16, 2016,12, 2019, certain executives were awarded rights to receive an aggregate of 122,515up to 220,065 common shares if our calculated ROIC, as defined in the PSAP, is in the top decile ofachieves certain performance criteria as compared to the Bloomberg Comp Group at the end of the performance period, which ends on the last trading day of 2018,2021, December 31, 2018. Unless there is a change in control as defined in the PSAP, none of these awards will vest if the specified performance target is not met as of the last day of the performance period.2021. This arrangement is recorded as an equity award that requires us to recognize compensation expense totaling $11.7$13.1 million over the shorter of the 3-year performance period that began on January 1, 2016,or requisite service period, as determined for each participant individually, of which $3.9$8.8 million has been recognized in 2016.2019. The unrecognized compensation expense is expected to be recognized over an estimated amortization period of 24 months.

Restricted Share Award Program

In 2004, the Compensation Committee of our Board of Supervisory Directors approved the RSAP to attract and retain the best employees, and to better align employee interests with those of our shareholders. Under this arrangement we awarded grants totaling 104,164182,533 shares, 91,784115,618 shares, and 80,983101,811 shares in 2016, 2015,2019, 2018 and 2014,2017, respectively. Each of these grants has a vesting period of principally six years and vests ratably on an annual basis. There are no performance accelerators for early vesting for these awards. Awards under the RSAP are classified as equity awards and recorded at the grant-date fair value with the compensation expense recognized over the expected life of the award. As of December 31, 2016,2019, there was $28.6$24.9 million of unrecognized total stock-based compensation expense relating to non-vested RSAP awards. The unrecognized compensation expense is expected to be recognized over an estimated weighted-average amortization period of 4445 months. The grant-date fair value of shares granted was $10.0$8.7 million,, $8.9 $11.6 million and $15.0$9.5 million in 2016, 20152019, 2018 and 2014, respectively and we have2017, respectively. We recognized compensation expense of $10.5$8.0 million,, $10.4 $8.9 million and $10.5$9.0 million in 2016, 20152019, 2018 and 2014,2017, respectively. The total grant-date fair value, which is the intrinsic value, of the shares vested was $9.9$8.7 million,, $10.4 $9.0 million and $10.4$9.6 million in 2016,

20152019, 2018 and 2014,2017, respectively. We have recognized a tax detriment from the vesting of the RSAP of $0.1 million in 2016 and tax benefits of $0.2 million and $2.9 million in 2015 and 2014, respectively.

2014 Nonemployee Director Stock Incentive Plan

On May 13,

In 2014, the 2006 Nonemployee Director Stock Option Plan was amended, restated and renamed as the 2014 Nonemployee Director Stock Incentive Plan (the "Director Plan"). The primary change effected by the 2014 amendment was to extend the period during which awards may be granted under the Director Plan to May 12, 2024. The Director Plan provides common shares for grant to our eligible Supervisory Directors. The maximum number of shares available for award under this plan is 1,400,000 common shares. As of December 31, 20162019 approximately 551,058644,509 shares remained available for issuance under the Director Plan. Only non-employee Supervisory Directors are eligible for these equity-based awards under the Director Plan.

In 2011, the Compensation Committee of our Board of Supervisory Directors approved the restricted share award program (the "Program") to compensate our non-employee Supervisory Directors. Under this arrangement we awarded grants totaling 10,68010,885 shares, 8,6168,322 shares and 4,5369,093 shares in 2016, 2015,2019, 2018 and 2014,2017, respectively. Each of these grants hasThe shares awarded in 2109, 2018 and 2017 have a vesting period of 3one year for each grant; the shares awarded in 2016, which vested in 2019, had a vesting period of three years. There are no performance accelerators for early vesting for these awards. Awards under the Program are classified as equity awards and recorded at the grant-date fair value with compensation expense recognized over the expected life of the award. As of December 31, 2016,2019, there was $1.3$0.2 million of unrecognized total stock-based compensation relating to non-vested Program awards. The unrecognized compensation expense is expected to be recognized over an estimated weighted-average amortization period of 223 months. The grant-date fair value of shares granted was $1.1$0.7 million,, $0.9 million and $0.9 million and $1.0 million in 2016, 2015,2019, 2018 and 2014,2017, respectively, and we have recognized compensation expense of $0.9$0.8 million,, $0.9 $1.4 million and $0.9$1.5 million in 2016, 2015,2019, 2018 and 2014,2017, respectively.

Equity Compensation Plan Information

Information about our equity compensation plans as of December 31, 2019 are as follows:

		Number of Common Shares to be Issued Upon Exercise of Outstanding Options, Warrants and Rights				Weighted Average Exercise Price of Outstanding Options, Warrants and Rights				Number of Common Shares Remaining Available for Future Issuance Under Equity Compensation Plans
Equity compensation plans approved by our shareholders
2014 Long-Term Incentive Plan			659,298				—				472,024
2014 Nonemployee Director Stock Incentive Plan			10,885				—				644,509
Equity compensation plans not approved by our shareholders			—				—				—
Total			670,183								1,116,533

Stock-based Compensation

Non-vested restricted share awards outstanding under both the Plan and the Director Plan as of December 31, 20162019 and changes during the year were as follows:

		Number of Shares				Weighted Average Grant Date Fair Value per Share
Non-vested at December 31, 2018			541,558			$	103.68
Granted			389,132			$	58.74
Vested			(220,417	)		$	110.59
Forfeited			(39,576	)		$	85.24
Non-vested at December 31, 2019			670,697			$	75.93

	Number of Shares			Weighted Average Grant Date Fair Value per Share
Non-vested at December 31, 2015	463,604			$	126.65
Granted	237,359			96.23
Vested	(141,612	)		139.82
Forfeited	(13,737	)		122.47
Non-vested at December 31, 2016	545,614			$	110.11

For the years ended December 31, 2016, 20152019, 2018 and 2014,2017, stock-based compensation expense under both the Plan and the Director Plan recognized in the income statement is as follows (in thousands):

		2019				2018				2017
Cost of product sales and services		$	7,288			$	8,648			$	8,879
General and administrative			13,591				25,546				14,063
Total stock-based compensation expense		$	20,879			$	34,194			$	22,942

	2016				2015				2014
Cost of product sales and services	$	10,073			$	10,126			$	10,331
General and administrative	12,006				11,153				10,139
Total stock-based compensation expense	$	22,079			$	21,279			$	20,470

14.

In 2019 and 2018, we recorded additional stock compensation expenses of $7.2 million and $9.9 million, respectively, for retirement eligible employees as discussed in the section "Performance Share Award Program" above.

16.  DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

We are exposed to market risks related to fluctuations in interest rates. To mitigate these risks, we utilize derivative instruments in the form of interest rate swaps. We do not enter into derivative transactions for speculative purposes.

Interest Rate Risk

Series A of our Senior Notes bears interest at a fixed rate of 4.01% and Series B bears interest at a fixed rate of 4.11%. Our Credit Facility bears interest at variable rates from LIBOR plus 1.25%1.375% to a maximum of LIBOR plus 2.00%. We are subject to interest rate risk on the debt carried throughin excess of $25 million drawn on our Credit Facility.

In 2014, we entered into two2 interest rate swap agreements for a total notional amount of $50 million to hedge changes in the variable rate interest expense on $50 million of our existing or replacement LIBOR-priced debt. UnderOne of the first swap agreementagreements with a value of $25 million we have fixed the LIBOR portion of the interest rate at 1.73% throughexpired on August 29, 2019, and under the second2019. The remaining swap agreement, of $25 million, we have fixedfixes the LIBOR portion of the interest rate at 2.50% through August 29, 2024. EachThis swap is measured at fair value and recorded in our consolidated balance sheetConsolidated Balance Sheet as aan asset or liability. They areIt is designated and qualifyqualifies as a cash flow hedging instrumentsinstrument and areis highly effective. Unrealized losses are deferred to shareholders' equity as a component of accumulated other comprehensive lossincome (loss) and are recognized in income as an increase or decrease to interest expense in the period in which the related cash flows being hedged are recognized in expense.

At December 31, 2016,2019, we had fixed rate debt aggregating $200$175 million and variable rate debt aggregating $18$132 million, after taking into account the effect of the swaps.

The fair values of outstanding derivative instruments at December 31, 2019 and 2018 are as follows (in thousands):

		Fair Value of Derivatives
		2019				2018				Balance Sheet Classification
Derivatives designated as hedges:
5 yr interest rate swap		$	—			$	135			Other Assets
10 yr interest rate swap			(1,054	)			(70	)		Other Long Term (Liabilities)
		$	(1,054	)		$	65

	Fair Value of Derivatives
	December 31, 2016				December 31, 2015			Balance Sheet Classification
Derivatives designated as hedges:
5 yr Interest Rate Swap	$	211			$	353		Other Liabilities
10 yr Interest Rate Swap	835				1,229			Other Liabilities
	$	1,046			$	1,582

The fair value of all outstanding derivatives was determined using a model with inputs that are observable in the market or can be derived from or corroborated by observable data.

The effect of the interest rate swaps on the Consolidated Statements of Operations for the years ended December 31, 2019 and 2018 was as follows (in thousands):

		2019				2018				Income Statement Classification
Derivatives designated as hedges:
5 yr interest rate swap		$	(121	)		$	(64	)		Interest Expense
10 yr interest rate swap			60				133			Interest Expense
		$	(61	)		$	69

	December 31, 2016				December 31, 2015			Income Statement Classification
Derivatives designated as hedges:
5 yr Interest Rate Swap	$	316			$	388		Interest Expense
10 yr Interest Rate Swap	513				583			Interest Expense
	$	829			$	971

15.

17.  FINANCIAL INSTRUMENTS

The Company's only financial assets and liabilities which are measured at fair value on a recurring basis relate to certain aspects of the Company's benefit plans and our derivative instruments. We use the market approach to value certain assets and liabilities at fair value using significant other observable inputs (Level 2) with the assistance of a third party specialist. We do not have any assets or liabilities measured at fair value on a recurring basis using quoted prices in an active market (Level 1) or significant unobservable inputs (Level 3). Gains and losses related to the fair value changes in the deferred compensation assets and liabilities are recorded in General and Administrative Expenses in the Consolidated Statements of Operations. Gains and losses related to the fair value of the interest rate swaps are recorded in Other Comprehensive Income. The following table summarizes the fair value balances (in thousands):

		Fair Value Measurement at December 31, 2019
		Total				Level 1				Level 2				Level 3
Assets:
Deferred compensation assets (1)		$	47,009			$	—			$	47,009			$	—
		$	47,009			$	—			$	47,009			$	—
Liabilities:
Deferred compensation plan		$	34,081			$	—			$	34,081			$	—
10 year interest rate swap			1,054				—				1,054				—
		$	35,135			$	—			$	35,135			$	—

		Fair Value Measurement at December 31, 2018
		Total				Level 1				Level 2				Level 3
Assets:
Deferred compensation assets (1)		$	42,161			$	—			$	42,161			$	—
5 year interest rate swap			135				—				135				—
		$	42,296			$	—			$	42,296			$	—
Liabilities:
Deferred compensation plan		$	33,287			$	—			$	33,287			$	—
10 year interest rate swap			70				—				70				—
		$	33,357			$	—			$	33,357			$	—

(1)

Deferred compensation assets consist of the cash surrender value of life insurance policies and are intended to assist in the funding of the deferred compensation arrangements.

	Fair Value Measurement at December 31, 2016
	Total				Level 1				Level 2				Level 3
Assets:
Deferred compensation trust assets (1)	$	25,530			$	—			$	25,530			$	—
Liabilities:
Deferred compensation plan	$	31,672			$	—			$	31,672			$	—
5 year interest rate swap	211				—				211				—
10 year interest rate swap	835				—				835				—
	$	32,718			$	—			$	32,718			$	—

	Fair Value Measurement at December 31, 2015
	Total				Level 1				Level 2				Level 3
Assets:
Deferred compensation trust assets (1)	$	23,737			$	—			$	23,737			$	—
Liabilities:
Deferred compensation plan	$	29,155			$	—			$	29,155			$	—
5 year interest rate swap	353				—				353				—
10 year interest rate swap	1,229				—				1,229				—
	$	30,737			$	—			$	30,737			$	—
(1) Trust assets consist of the cash surrender value of life insurance policies and are intended to fund the deferred compensation agreements.

16.

18.  OTHER (INCOME) EXPENSE, NET

The components of other (income) expense, net, for the years ended December 31, 2019, 2018 and 2017 are as follows (in thousands):

		2019				2018				2017
Sale of assets		$	(583	)		$	(1,078	)		$	(346	)
Results of non-consolidated subsidiaries			(208	)			(203	)			(332	)
Foreign exchange			1,725				2,598				951
Rents and royalties			(607	)			(510	)			(454	)
Employment related charges			2,998				—				—
Return on pension assets and other pension costs			(1,501	)			(644	)			(587	)
Acquisition-related costs			—				623				—
Gain on sale of business			(1,154	)			—				—
Insurance settlement			—				(707	)			—
Cost reduction and other charges			5,555				—				1,145
Other, net			(906	)			(816	)			255
Total Other (income) expense, net		$	5,319			$	(737	)		$	632

			For the Years Ended December 31,
			2016				2015				2014
Sale of assets			$	(618	)		$	(408	)		$	(764	)
Results of non-consolidated subsidiaries			(506		)		(383		)		(364		)
Foreign exchange			1,832				4,507				4,230
Interest income			—				(56		)		(403		)
Rents and royalties			(420		)		(484		)		(817		)
Insurance and other settlements			—				—				(292		)
Other, net			(630		)		493				(521		)
Total other (income) expense, net			$	(342	)		$	3,669			$	1,069

Foreign Currency Risk

We operate in a number of international areas which exposes us to foreign currency exchange rate risk. We do not currently hold or issue forward exchange contracts or other derivative instruments for hedging or speculative purposes (a foreign exchange contract is an agreement to exchange different currencies at a given date and at a specified rate). Foreign exchange gains and losses are the result of fluctuations in the USD against foreign currencies and are included in other (income) expense, net in the Consolidated Statements of Operations. We recognized foreign exchange losses in countries where the USD weakened against the local currency and we had net monetary liabilities denominated in the local currency; as well as countries where the USD strengthened against the local currency and we had net monetary assets denominated in the local currency. We recognized foreign exchange gains in countries where the USD strengthened against the local currency and we had net monetary liabilities denominated in the local currency and in countries where the USD weakened against the local currency and we had net monetary assets denominated in the local currency.

Foreign exchange gains and losses for the years ended December 31, 2019, 2018 and 2017 are summarized in the following table (in thousands):

(Gains) losses by currency		2019				2018				2017
Australian Dollar		$	158			$	183			$	12
British Pound			599				158				(92	)
Canadian Dollar			489				458				(62	)
Euro			469				208				1,413
Other currencies, net			10				1,591				(320	)
Total (gain) loss, net		$	1,725			$	2,598			$	951

		For the Years Ended December 31,
(Gains) losses by currency		2016				2015				2014
	Australian Dollar	$	136			$	238			$	289
	British Pound	807				434				1,132
	Canadian Dollar	(137		)		1,848				1,886
	Euro	(49		)		(908		)		(1,537		)
	Malaysian Ringgit	43				545				278
	Mexican Peso	(47		)		414				284
	Nigerian Naira	200				630				432
	Other currencies, net	879				1,306				1,466
Total (gain) loss, net		$	1,832			$	4,507			4,230

17 . SEVERANCE AND OTHER CHARGES

19.  DISCONTINUED OPERATIONS

In 2015,2018, in responsea continuing effort to lower commodity pricingstreamline our business and align our business strategy for crude oilfurther integration of services and reduced spending byproducts, the Company committed to divest the business of our clientsfull range of permanent downhole monitoring systems and related services, which had been part of our Production Enhancement segment.

On June 7, 2019, we entered into a definitive purchase agreement for approximately $16.6 million in cash. A pre-tax gain of $8.3 million was recognized in connection with this transaction, subject to adjustments for working capital purposes and is classified in Income for discontinued operations in the Consolidated Statements of Operations. The purchase agreement also provides for additional proceeds of up to $2.5 million based on their oilthe results of operations of the sold business in 2019 and gas fields, we reduced our cost structure, primarily through a reduction in our workforce, to better align with the decreasing activity levels into the foreseeable future. As a result of these cost reductions, we recorded severance charges of $8.8 million,2020, none of which approximately $0.5 million were accruedhas been recognized.

The associated results of operations are separately reported as Discontinued Operations for all periods presented on the Consolidated Statements of Operations. Balance sheet items for this discontinued business, including an allocation of goodwill from the Production Enhancement segment, have been reclassified to Other current assets and remaining to be paidOther current liabilities in the Consolidated Balance Sheet. Cash flows from this discontinued business are shown in the table below. As such, the results from continuing operations for the Company and segment highlights for Production Enhancement, exclude these discontinued operations.

Selected data for this discontinued business for the years ended December 31, 2019, 2018 and 2017 consisted of the following (in thousands):

		2019				2018				2017
Service revenue		$	1,165			$	1,462			$	1,254
Product sales			4,233				5,708				10,736
Total revenue			5,398				7,170				11,990
Cost of services, exclusive of depreciation      expense shown below			690				1,163				709
Cost of product sales, exclusive of depreciation      expense shown below			3,196				5,696				8,573
Depreciation and amortization			—				115				416
Other expense (income)			91				72				(180	)
Operating income			1,421				124				2,472
Gain on sale			8,319				—				—
Income from discontinued operations      before income tax expense			9,740				124				2,472
Income tax expense			1,907				182				361
Income (loss) from discontinued operations,      net of income taxes		$	7,833			$	(58	)		$	2,111

Selected data for this discontinued business at December 31, 2016. Additionally, in 20152019 and 2018 consisted of the Company recorded a charge to income associated withfollowing (in thousands):

		2019				2018
Current assets		$	—			$	3,712
Non-current assets			—				1,848
Total assets		$	—			$	5,560
Current liabilities		$	—			$	1,633
Non-current liabilities			—				82
Total liabilities		$	—			$	1,715

Net cash provided by (used in) operating activities of discontinued operations for the impairmentyears ended December 31, 2019, 2018 and 2017 was $0.1 million, $0.2 million and $2.5 million, respectively.

Net cash provided by investing activities of certain equipment and intangible assets and facility exit costs of $5.5discontinued operations for the year ended December 31, 2019 was $14.8 million. During 2015, we recorded loss contingencies for various ongoing legal issues of $8.6 million. See Note 11 - Commitments and Contingencies.

18.

20.  SEGMENT REPORTING

We operate our business in three reportable2 reporting segments. These complementary segments provide different services and products and utilize different technologies for improving reservoir performance and increasing oil and gas recovery from new and existing fields:  (1) Reservoir Description and (2) Production Enhancement and (3) Reservoir Management.Enhancement. These business segments provide different services and products and utilize different technologies.

•

Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples to increase production and improve recovery of oil and gas from our clients' reservoirs. We provide laboratory-based analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry. We also provide proprietary and joint industry studies based on these types of analyses.

Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated diagnostic services to evaluate the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

•

Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated diagnostic services to evaluate and monitor the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

Results for these business segments are presented below. We use the same accounting policies to prepare our business segment results as are used to prepare our Consolidated Financial Statements. All interest and other non-operating income (expense) is attributable to Corporate & Other area and is not allocated to specific business segments. Summarized financial information concerning our segments for the years ended December 31, 2019, 2018 and 2017 is shown in the following table (in thousands):

		Reservoir Description				Production Enhancement				Corporate & Other(1)				Consolidated
December 31, 2019
Revenues from unaffiliated clients		$	420,897			$	247,313			$	—			$	668,210
Inter-segment revenues			436				500				(936	)			—
Segment operating income			55,140				38,378				3,166				96,684
Total assets (at end of period)			343,405				279,769				151,499				774,673
Capital expenditures			10,439				11,253				577				22,269
Depreciation and amortization			15,109				5,645				1,851				22,605
December 31, 2018
Revenues from unaffiliated clients		$	413,082			$	287,764			$	—			$	700,846
Inter-segment revenues			988				378				(1,366	)			—
Segment operating income			54,847				63,039				736				118,622
Total assets (at end of period)			315,503				270,832				62,492				648,827
Capital expenditures			12,829				8,222				690				21,741
Depreciation and amortization			16,747				4,271				2,069				23,087
December 31, 2017
Revenues from unaffiliated clients		$	415,220			$	232,599			$	—			$	647,819
Inter-segment revenue			294				1,185				(1,479	)			—
Segment operating income (loss)			66,500				43,987				(519	)			109,968
Total assets (at end of period)			320,569				206,389				57,854				584,812
Capital expenditures			10,406				6,819				1,550				18,775
Depreciation and amortization			17,972				4,435				2,117				24,524

(1)

"Corporate and other" represents those items that are not directly relating to a particular segment and eliminations.

		Reservoir Description				Production Enhancement				Reservoir Management				Corporate & Other (1)				Consolidated
December 31, 2016
Revenues from unaffiliated clients		$	404,146			$	164,027			$	26,568			$	—			$	594,741
Inter-segment revenues		3,941				877				121				(4,939		)		—
Segment operating income (loss)		75,148				8,891				2,043				97				86,179
Total assets (at end of period)		301,574				191,846				17,599				62,033				573,052
Capital expenditures		8,195				2,298				25				838				11,356
Depreciation and amortization		17,735				5,272				1,344				2,521				26,872
December 31, 2015
Revenues from unaffiliated clients		$	473,372			$	267,224			$	56,924			$	—			$	797,520
Inter-segment revenue		8,674				1,837				248				(10,759		)		—
Segment operating income (loss)		111,032				35,027				15,655				(644		)		161,070
Total assets (at end of period)		326,182				210,214				27,076				61,786				625,258
Capital expenditures		17,849				3,292				273				1,383				22,797
Depreciation and amortization		16,778				6,611				1,624				2,444				27,457

December 31, 2014
Revenue from unaffiliated clients		$	518,974			$	467,577			$	98,671			$	—			$	1,085,222
Inter-segment revenue		10,387				2,459				366				(13,212		)		—
Segment operating income (loss)		143,624				165,204				37,220				483				346,531
Total assets (at end of period)		319,325				257,135				34,179				62,686				673,325
Capital expenditures		21,371				7,990				2,681				4,544				36,586
Depreciation and amortization		15,816				7,509				1,393				1,978				26,696
(1) "Corporate and other" represents those items that are not directly relating to a particular segment and eliminations.

We are a Netherlands company and we derive our revenue from services and product sales to clients primarily in the oil and gas industry. No single client accounted for 10% or more of revenue in any of the periods presented.

We attribute service revenue to the country in which the service was performed rather than where the reservoir or project is located while we attribute product sales revenue to the country where the product was shipped as we feel this gives a clearer view of our operations. We do, however, have significant levels of service revenue performed and recorded in the U.S., where the services were performed, that are sourced from projects on non-U.S. oilfields.

The following table shows a summary of our U.S. and non-U.S. operations (with 2013 revenue reclassified as described above) for the years ended or at December 31, 2016, 20152019, 2018 and 20142017 (in thousands):

		United								Other
GEOGRAPHIC INFORMATION		States				Canada				Countries(1) (2)				Consolidated
December 31, 2019
Revenue		$	289,173			$	25,240			$	353,797			$	668,210
Property, plant and equipment, net			66,053				10,998				46,455				123,506
December 31, 2018
Revenue		$	324,073			$	34,633			$	342,140			$	700,846
Property, plant and equipment, net			65,073				9,567				48,277				122,917
December 31, 2017
Revenue		$	283,969			$	30,131			$	333,719			$	647,819
Property, plant and equipment, net			63,812				9,725				49,561				123,098

GEOGRAPHIC INFORMATION	United States				Canada				Other Countries (1) (2)				Consolidated
December 31, 2016
Revenue	$	224,863			$	22,547			$	347,331			$	594,741
Property, plant and equipment, net	71,388				10,497				47,997				129,882
December 31, 2015
Revenue	$	338,907			$	43,808			$	414,805			$	797,520
Property, plant and equipment, net	80,603				12,082				50,526				143,211
December 31, 2014
Revenue	$	515,643			$	105,244			$	464,335			$	1,085,222
Property, plant and equipment, net	83,748				16,057				49,209				149,014
(1) Revenue earned in other countries, including The Netherlands, was not individually greater than 10% of our consolidated revenue in 2016, 2015 or 2014.
(2) Property, plant and equipment, net in other countries, including The Netherlands, were not individually greater than 10% of our consolidated fixed assets in 2016, 2015 or 2014.

(1)	Revenue earned in other countries, including the Netherlands, was not individually greater than 10% of our consolidated revenue in 2019, 2018 and 2017.

(2)	Property, plant and equipment, net in other countries, including the Netherlands, were not individually greater than 10% of our consolidated fixed assets in 2019, 2018 and 2017.

The following table shows the breakdown between services and product sales for the years ended December 31, 2016, 20152019, 2018 and 20142017 (in thousands):

SEGMENT BREAKDOWN BETWEEN SERVICES / PRODUCT SALES		2019				2018				2017
Reservoir Description Services		$	389,801			$	387,098			$	393,742
Production Enhancement Services			84,392				99,722				86,522
Total Revenue - Services		$	474,193			$	486,820			$	480,264
Reservoir Description Product sales		$	31,096			$	25,984			$	21,478
Production Enhancement Product sales			162,921				188,042				146,077
Total Revenue - Product sales		$	194,017			$	214,026			$	167,555
Total Revenue		$	668,210			$	700,846			$	647,819

SEGMENT BREAKDOWN BETWEEN SERVICES / PRODUCT SALES		For the Years Ended December 31,
		2016				2015				2014
Reservoir Description Services		$	377,975			$	445,729			$	495,658
Production Enhancement Services		68,433				121,675				220,177
Reservoir Management Services		23,851				44,550				65,037
Total Revenue - Services		$	470,259			$	611,954			$	780,872
Reservoir Description Product sales		$	26,171			$	27,643			$	23,316
Production Enhancement Product sales		95,594				145,549				247,400
Reservoir Management Product sales		2,717				12,374				33,634
Total Revenue - Product sales		$	124,482			$	185,566			$	304,350
Total Revenue		$	594,741			$	797,520			$	1,085,222

19.

21.  UNAUDITED SELECTED QUARTERLY RESULTS OF OPERATIONS

Summarized below is our unaudited quarterly financial data for the quarters during the years ended December 31, 20162019 and 20152018 (in thousands, except per share data):

			Quarter ended 2016
			December 31				September 30				June 30				March 31
Services and product sales revenue			$	149,542			$	143,483			$	148,069			$	153,647
Cost of services and product sales			112,678				107,153				109,999				112,814
Other operating expenses			15,340				14,842				17,843				17,893
Operating income			21,524				21,488				20,227				22,940
Interest expense			2,548				2,569				3,021				3,434
Income before income tax expense			18,976				18,919				17,206				19,506
Income tax expense			3,607				2,081				671				4,389
Net income			15,369				16,838				16,535				15,117
Net income (loss) attributable to non-controlling interest			(90		)		108				(89		)		35
Net income attributable to Core Laboratories N.V.			$	15,459			$	16,730			$	16,624			$	15,082
Per share information:
Basic earnings per share (1)			$	0.35			$	0.38			$	0.38			$	0.36
Diluted earnings per share (1)			$	0.35			$	0.38			$	0.38			$	0.35
Weighted average common shares outstanding:
Basic			44,113				44,110				43,297				42,380
Diluted			44,326				44,320				43,505				42,520

			Quarter ended 2015																Quarter ended 2019
			December 31				September 30				June 30				March 31				December 31				September 30				June 30				March 31
Services and product sales revenue	Services and product sales revenue		$	182,723			$	197,265			$	203,889			$	213,643			$	156,778			$	173,200			$	169,038			$	169,194
Cost of services and product sales	Cost of services and product sales		124,709				129,050				134,619				144,274					117,749				125,996				124,451				127,383
Other operating expenses			34,372				21,397				21,377				26,652
Other operating expenses (3)																				17,974				15,997				16,579				25,397
Operating income	Operating income		23,642				46,818				47,893				42,717					21,055				31,207				28,008				16,414
Interest expense	Interest expense		3,390				3,471				3,116				2,403					3,588				3,662				3,714				3,726
Income before income tax expense	Income before income tax expense		20,252				43,347				44,777				40,314					17,467				27,545				24,294				12,688
Income tax expense	Income tax expense		4,658				9,753				10,075				9,272					7,177				3,335				4,808				(27,610	)
Net income from continuing operations																				10,290				24,210				19,486				40,298
Net income (loss) from discontinued operations																				—				(397	)			7,971				259
Net income	Net income		15,594				33,594				34,702				31,042					10,290				23,813				27,457				40,557
Net income attributable to non-controlling interest			176				190				76				(357		)
Net income (loss) attributable to non-controlling interest																				(40	)			84				43				47
Net income attributable to Core Laboratories N.V.	Net income attributable to Core Laboratories N.V.		$	15,418			$	33,404			$	34,626			$	31,399			$	10,330			$	23,729			$	27,414			$	40,510
Per share information:	Per share information:
Basic earnings per share (1)			$	0.36			$	0.79			$	0.81			$	0.72
Diluted earnings per share (1)			$	0.36			$	0.78			$	0.81			$	0.72
Basic earnings per share (1) (2)																			$	0.23			$	0.54			$	0.62			$	0.91
Diluted earnings per share (1) (2)																			$	0.23			$	0.53			$	0.61			$	0.91
Weighted average common shares outstanding:	Weighted average common shares outstanding:
Basic	Basic		42,355				42,517				42,790				43,340					44,379				44,371				44,354				44,323
Diluted	Diluted		42,518				42,685				42,959				43,466					44,634				44,716				44,815				44,734

		Quarter ended 2018
		December 31				September 30				June 30				March 31
Services and product sales revenue		$	173,207			$	182,146			$	175,475			$	170,018
Cost of services and product sales			125,694				128,179				123,773				119,318
Other operating expenses (3)			29,535				19,088				18,253				18,384
Operating income			17,978				34,879				33,449				32,316
Interest expense			3,634				3,278				3,296				3,120
Income before income tax expense			14,344				31,601				30,153				29,196
Income tax expense			5,750				9,404				5,020				5,273
Net income from continuing operations			8,594				22,197				25,133				23,923
Net income (loss) from discontinued operations			408				208				(328	)			(346	)
Net income			9,002				22,405				24,805				23,577
Net income (loss) attributable to non-controlling interest			167				(7	)			53				50
Net income attributable to Core Laboratories N.V.		$	8,835			$	22,412			$	24,752			$	23,527
Per share information:
Basic earnings per share (1) (2)		$	0.20			$	0.51			$	0.56			$	0.53
Diluted earnings per share (1) (2)		$	0.20			$	0.50			$	0.56			$	0.53
Weighted average common shares outstanding:
Basic			44,226				44,216				44,203				44,179
Diluted			44,401				44,591				44,493				44,463

(1)

Basic earnings per share and Diluted earnings per share are based on Net income attributable to Core Laboratories N.V.

(1)

(2)

The sum of the individual quarterly earnings per share amounts may not agree with the year-to-date earnings per share amounts as each quarterly computation is based on the weighted average number of common shares outstanding during that period.

(3)

First quarter of 2019 and Fourth quarter of 2018 includes charges of $7.2 million and $9.9 million, respectively, of additional stock compensation expenses. See Note 15.

CORE LABORATORIES N.V.

Schedule II - Valuation and Qualifying Account

(In thousands)

			Balance at Beginning of Period				Additions Charged to / Recovered from Expense				Write-offs				Other (1)				Balance at End of Period
Year ended December 31, 2016
Reserve for doubtful accounts			$	4,136			$	(18	)		$	(999	)		$	20			$	3,139
Year ended December 31, 2015
Reserve for doubtful accounts			$	3,397			$	2,592			$	(1,442	)		$	(411	)		$	4,136
Year ended December 31, 2014
Reserve for doubtful accounts			$	2,872			$	1,243			$	(883	)		$	165			$	3,397
(1)	Comprised primarily of differences due to changes in exchange rate.

INDEX TO EXHIBITS

		Balance at Beginning of Period				Additions Charged to/Recovered from Expense				Write-offs				Other (1)				Balance at End of Period
Year ended December 31, 2019
Reserve for doubtful accounts		$	2,650			$	594			$	(454	)		$	(60	)		$	2,730
Year ended December 31, 2018
Reserve for doubtful accounts		$	2,590			$	605			$	(560	)		$	15			$	2,650
Year ended December 31, 2017
Reserve for doubtful accounts		$	3,139			$	(202	)		$	(428	)		$	81			$	2,590

(1)
Exhibit No.		Exhibit Title		Incorporated by Reference from the Following Documents
3.1		Articles Comprised primarily of Association of the Company, as amended on May 16, 2012 (including English translation)		Form 10-K, February 19, 2013 (File No. 001-14273)
10.1		Core Laboratories N.V. 2014 Long-Term Incentive Plan (as amended and restated effective as of May 12, 2014)		Proxy Statement dated March 19, 2014 for Annual Meeting of Shareholders (File No. 001-14273)
10.2		Core Laboratories N.V. 2014 Nonemployee Director Stock Incentive Plan (as amended and restated effective as of May 12, 2014)		Proxy Statement dated March 19, 2014 for Annual Meeting of Shareholders (File No. 001-14273)
10.3		Form of Indemnification Agreementdifferences due to be entered into by the Company and certain of its directors and officers		Form F-1, September 1, 1995 (File No. 000-26710)
10.4		Core Laboratories Supplemental Executive Retirement Plan effective as of January 1, 19981		Form 10-K, March 31, 1998 (File No. 000-26710)
10.5		Amendment to Core Laboratories Supplemental Executive Retirement Plan filed January 1, 1998, effective July 29, 19991		Form 10-Q, August 16, 1999 (File No. 001-14273)
10.6		Core Laboratories Supplemental Executive Retirement Plan for Monty L. Davis effective January 1, 19991		Form 10-Q, August 16, 1999 (File No. 001-14273)
10.7		Amendment to Core Laboratories Supplemental Executive Retirement Plan1		Form 10-Q, May 15, 2003 (File No. 001-14273)
10.8		Amendment to Core Laboratories Supplemental Executive Retirement Plan dated as of March 5, 20081		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.9		Amendment to Core Laboratories Supplemental Executive Retirement Plan for Monty L. Davis dated as of March 5, 20081		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.10		Non-Employee Director Compensation Summary		Form 10-K, February 22, 2008 (File No. 001-14273)
10.11		Core Laboratories N.V. 2006 Nonemployee Director Stock Incentive Plan		Proxy Statement dated May 17, 2006 for Annual Meeting of Shareholders (File No. 001-14273)
10.12		Form of Director Performance Share Award Restricted Share Agreement (ROE Based) 1		Form 10-K, February 20, 2007 (File No. 001-14273)
10.13		Form of Restricted Share Award Program Agreement1		Form 10-K, February 20, 2007 (File No. 001-14273)
10.14		Form of Amendment to Core Laboratories 2008 Non-Employee Director Restricted Performance Share Award Agreement (ROE Based)		Form 10-Q, April 22, 2011 (File No. 001-14273)
				changes in exchange rate.

10.15		Form of Amendment to Core Laboratories 2009 Non-Employee Director Restricted Performance Share Award Agreement (ROE Based)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.16		Form of Amendment to Core Laboratories 2010 Non-Employee Director Restricted Performance Share Award Agreement (ROIC Based)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.17		Form of Core Laboratories 2011 Non-Employee Director Restricted Share Award Program Agreement		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.18		Form of Core Laboratories 2011 Performance Share Award Program Agreement (ROIC Based)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.19		Form of Core Laboratories 2010 Performance Restricted Share Award Program Agreement (ROIC Based)		Form 10-Q, April 22, 2011 (File No. 001-14273)
10.20		Core Laboratories N.V. Board Succession Plan, dated March 2, 2011		Form 8-K, March 7, 2011 (File No. 001-14273)
10.21		Sixth Amended and Restated Credit Agreement, dated as of August 29, 2014, among Core Laboratories, N.V., and Core Laboratories (U.S.) Interests Holdings, Inc., and the lenders party thereto and Bank of America, N.A., as administrative agent		Form 8-K, August 29, 2014 (File No. 001-14273)
10.22		Amendment No. 1 to the Sixth Amended and Restated Credit Agreement among Core Laboratories N.V. and Core Laboratories (U.S.) Interests Holdings, Inc., as borrowers and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer		Form 8-K, March 16, 2015 (File No. 001-14273)
10.23		Form of Restated Employment Agreement between Core Laboratories N.V. and David M. Demshur dated as of December 31, 20071		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.24		Amendment to Restated Employment Agreement dated December 31, 2007, between Core Laboratories N.V. and David M. Demshur1		Form 10-K, February 22, 2011 (File No. 001-14273)
10.25		Form of Restated Employment Agreement between Core Laboratories N.V. and Richard L. Bergmark dated as of December 31, 20071		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.26		Amendment to Restated Employment Agreement dated December 31, 2007, between Core Laboratories N.V. and Richard L. Bergmark1		Form 10-K, February 22, 2011 (File No. 001-14273)
10.27		Form of Restated Employment Agreement between Core Laboratories N.V. and Monty L. Davis dated as of December 31, 20071		Form 10-Q, May 12, 2008 (File No. 001-14273)
10.28		Amendment to Restated Employment Agreement dated December 31, 2007, between Core Laboratories N.V. and Monty L. Davis1		Form 10-K, February 22, 2011 (File No. 001-14273)
10.29		Master Note Purchase Agreement, dated as of September 30, 2011		Form 8-K, September 30, 2011 (File No. 001-14273)

21.1		Significant Subsidiaries of the Registrant		Filed Herewith
23.1		Consent of KPMG LLP		Filed Herewith
23.2		Consent of PricewaterhouseCoopers LLP		Filed Herewith
31.1		Certification of Chief Executive Officer Pursuant to Rule 13a-14 of the Securities Exchange Act of 1934, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed Herewith
31.2		Certification of Chief Financial Officer Pursuant to Rule 13a-14 of the Securities Exchange Act of 1934, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed Herewith
32.1		Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Furnished Herewith
32.2		Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Furnished Herewith
101.INS		XBRL Instance Document		Filed Herewith
101.SCH		XBRL Schema Document		Filed Herewith
101.CAL		XBRL Calculation Linkbase Document		Filed Herewith
101.LAB		XBRL Label Linkbase Document		Filed Herewith
101.PRE		XBRL Presentation Linkbase Document		Filed Herewith
101.DEF		XBRL Definition Linkbase Document		Filed Herewith
1 Management contracts or compensatory plans or arrangements.

Exhibit 21.1

Significant Subsidiaries of the Registrant at December 31, 2016

Name		Legal Seat		Ownership %
Core Laboratories Australia PTY LTD		Perth, Australia		100%
Core Laboratories Canada Ltd.		Alberta, Canada		100%
Core Laboratories International B.V.		Amsterdam, The Netherlands		100%
Core Laboratories LP		Delaware, United States		100%
Core Laboratories Malaysia SDN BHD		Kuala Lumpur, Malaysia		100%
Core Laboratories Sales N.V.		Willemstad, Curacao		100%
Core Laboratories (U.K.) Limited		London, United Kingdom		100%
Owen Oil Tools LP		Delaware, United States		100%
Core Lab de Mexico S.A. de C.V.		Mexico City, Mexico		100%
Saybolt Belgium N.V.		Antwerp, Belgium		100%
Saybolt LP		Delaware, United States		100%
Saybolt Nederland B.V.		Rotterdam, The Netherlands		100%
Saybolt (Singapore) PTE LTD		Singapore, Singapore		100%
Stim-Lab, Inc.		Oklahoma, United States		100%
ZAO Petroleum Analysts		Moscow, Russian Federation		100%

Pursuant to Item 601(b)(21)(ii) of Regulation S-K, the names of other subsidiaries are omitted because, considered in the aggregate, they would not constitute a significant subsidiary as of the end of the year covered by this report.

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Supervisory Directors and Shareholders

Core Laboratories N.V.:

We consent to the incorporation by reference in the registration statements on Form S-3 (No. 333-211291) and Form S‑8 (Nos. 333-73772 and 333-73774) of Core Laboratories N.V. of our reports dated February 10, 2017, with respect to the consolidated balance sheet of Core Laboratories N.V. and subsidiaries as of December 31, 2016, and the related consolidated statements of operations, comprehensive income, changes in equity, and cash flows the year then ended, and the related financial statement schedule, and the effectiveness of internal control over financial reporting as of December 31, 2016, which reports appear in the December 31, 2016 annual report on Form 10-K of Core Laboratories N.V.

/s/ KPMG LLP

Houston, Texas

February 10, 2017

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-73772 and 333-73774) and Form S-3 (No. 333-211291) of Core Laboratories N.V. of our report dated February 12, 2016 relating to the consolidated financial statements and financial statement schedule, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Houston, Texas

February 10, 2017

41

37