Adams Resources & Energy (AE) 10-Q 12 Aug 21 2021 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Aug. 01, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	1-07908
Entity Registrant Name	ADAMS RESOURCES & ENERGY, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-1753147
Entity Address, Address Line One	17 South Briar Hollow Lane
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77027
City Area Code	713
Local Phone Number	881-3600
Title of 12(b) Security	Common Stock, $0.10 Par Value
Trading Symbol	AE
Security Exchange Name	NYSEAMER
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		4,257,378
Document Fiscal Year Focus	2021
Entity Central Index Key	0000002178
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Amendment Flag	false

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 88,668	$ 39,293
Restricted cash	7,033	12,772
Accounts receivable, net of allowance for doubtful accounts of $113 and $114, respectively	125,910	99,799
Accounts receivable – related party	4	0
Inventory	29,712	19,336
Derivative assets	1,255	61
Income tax receivable	5,846	13,288
Prepayments and other current assets	2,122	2,964
Total current assets	260,550	187,513
Property and equipment, net	90,577	94,134
Operating lease right-of-use assets, net	7,249	8,051
Intangible assets, net	3,700	4,106
Other assets	2,930	2,383
Total assets	365,006	296,187
Current liabilities:
Accounts payable	151,113	85,991
Derivative liabilities	1,221	52
Current portion of finance lease obligations	4,333	4,112
Current portion of operating lease liabilities	2,184	2,050
Other current liabilities	13,556	22,343
Total current liabilities	172,407	114,548
Other long-term liabilities:
Long-term debt	8,000	0
Asset retirement obligations	2,342	2,308
Finance lease obligations	11,246	11,507
Operating lease liabilities	5,067	6,000
Deferred taxes and other liabilities	11,093	12,732
Total liabilities	210,155	147,095
Commitments and contingencies (Note 15)
Shareholders’ equity:
Preferred stock - $1.00 par value, 960,000 shares authorized, none outstanding	0	0
Common stock - $0.10 par value, 7,500,000 shares authorized, 4,251,015 and 4,243,716 shares outstanding, respectively	424	423
Contributed capital	13,655	13,340
Retained earnings	140,772	135,329
Total shareholders’ equity	154,851	149,092
Total liabilities and shareholders’ equity	$ 365,006	$ 296,187

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Allowance for doubtful accounts	$ 112	$ 114
Shareholders’ equity:
Preferred stock - par value (in dollars per share)	$ 1	$ 1
Preferred stock - shares authorized (in shares)	960,000	960,000
Preferred stock - shares outstanding (in shares)	0	0
Common stock - par value (in dollars per share)	$ 0.10	$ 0.10
Common stock - shares authorized (in shares)	7,500,000	7,500,000
Common stock - shares outstanding (in shares)	4,257,378	4,243,716

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Total revenues	$ 486,744	$ 152,286	$ 812,235	$ 505,763
Costs and expenses:
General and administrative	2,961	2,731	6,337	5,625
Depreciation and amortization	4,801	4,278	9,854	8,751
Total costs and expenses	480,409	149,351	802,049	522,768
Operating earnings (losses)	6,335	2,935	10,186	(17,005)
Other income (expense):
Interest and other income	62	144	196	509
Interest expense	(204)	(68)	(424)	(218)
Total other (expense) income, net	(142)	76	(228)	291
Earnings (Losses) before income taxes	6,193	3,011	9,958	(16,714)
Income tax (provision) benefit	(1,484)	492	(2,441)	8,790
Net earnings (losses)	$ 4,709	$ 3,503	$ 7,517	$ (7,924)
Earnings (Losses) per share:
Basic net earnings (losses) per common share (in dollars per share)	$ 1.11	$ 0.83	$ 1.77	$ (1.87)
Diluted net earnings (losses) per common share (in dollars per share)	1.10	0.82	1.76	(1.87)
Dividends per common share (in dollars per share)	$ 0.24	$ 0.24	$ 0.48	$ 0.48
Marketing
Revenues:
Total revenues	$ 463,092	$ 140,141	$ 767,115	$ 477,362
Costs and expenses:
Cost of goods and services sold	453,081	131,454	748,288	484,319
Transportation
Revenues:
Total revenues	23,497	12,145	44,732	28,401
Costs and expenses:
Cost of goods and services sold	19,078	10,888	36,538	24,073
Pipeline and storage
Revenues:
Total revenues	155	0	388	0
Costs and expenses:
Cost of goods and services sold	$ 488	$ 0	$ 1,032	$ 0

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities:
Net earnings (losses)	$ 7,517	$ (7,924)
Adjustments to reconcile net losses earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	9,854	8,751
Gains on sales of property	(265)	(140)
Provision for doubtful accounts	(2)	(24)
Stock-based compensation expense	417	304
Deferred income taxes	(1,636)	(1,534)
Net change in fair value contracts	(25)	(12)
Changes in assets and liabilities:
Accounts receivable	(26,109)	27,103
Accounts receivable/payable, affiliates	(4)	1
Inventories	(10,376)	6,570
Income tax receivable	7,442	(4,733)
Prepayments and other current assets	842	262
Accounts payable	63,831	(63,013)
Accrued liabilities	1,235	3,875
Other	(614)	55
Net cash provided by (used in) operating activities	52,107	(30,459)
Investing activities:
Property and equipment additions	(3,602)	(2,880)
Asset acquisition	0	(9,137)
Proceeds from property sales	1,316	514
Insurance and state collateral (deposits) refunds	0	1,129
Net cash used in investing activities	(2,286)	(10,374)
Financing activities:
Borrowings under Credit Agreement	8,000	0
Principal repayments of finance lease obligations	(2,123)	(1,070)
Payment for financed portion of VEX acquisition	(10,000)	0
Payment of contingent consideration liability	0	(111)
Dividends paid on common stock	(2,062)	(2,044)
Net cash used in financing activities	(6,185)	(3,225)
Increase (Decrease) in cash and cash equivalents, including restricted cash	43,636	(44,058)
Cash and cash equivalents, including restricted cash, at beginning of period	52,065	122,255
Cash and cash equivalents, including restricted cash, at end of period	$ 95,701	$ 78,197

UNAUDITED CONDENSED CONSOLIDA_5

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Contributed Capital	Retained Earnings
Beginning balance at Dec. 31, 2019	$ 151,641	$ 423	$ 12,778	$ 138,440
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	(11,427)			(11,427)
Stock-based compensation expense	134		134
Dividends declared:
Common stock	(1,016)			(1,016)
Awards under LTIP	(6)			(6)
Ending balance at Mar. 31, 2020	139,326	423	12,912	125,991
Beginning balance at Dec. 31, 2019	151,641	423	12,778	138,440
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	(7,924)
Ending balance at Jun. 30, 2020	141,890	423	13,001	128,466
Beginning balance at Mar. 31, 2020	139,326	423	12,912	125,991
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	3,503			3,503
Stock-based compensation expense	170		170
Cancellation of shares withheld to cover taxes upon vesting of restricted awards	(81)		(81)
Dividends declared:
Common stock	(1,018)			(1,018)
Awards under LTIP	(10)			(10)
Ending balance at Jun. 30, 2020	141,890	423	13,001	128,466
Beginning balance at Dec. 31, 2020	149,092	423	13,340	135,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	2,808			2,808
Stock-based compensation expense	185		185
Cancellation of shares withheld to cover taxes upon vesting of restricted awards	(31)		(31)
Dividends declared:
Common stock	(1,019)			(1,019)
Awards under LTIP	(18)			(18)
Ending balance at Mar. 31, 2021	151,017	423	13,494	137,100
Beginning balance at Dec. 31, 2020	149,092	423	13,340	135,329
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	7,517
Ending balance at Jun. 30, 2021	154,851	424	13,655	140,772
Beginning balance at Mar. 31, 2021	151,017	423	13,494	137,100
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (losses)	4,709			4,709
Stock-based compensation expense	232		232
Vesting of restricted awards	0	1	(1)
Cancellation of shares withheld to cover taxes upon vesting of restricted awards	(70)		(70)
Dividends declared:
Common stock	(1,021)			(1,021)
Awards under LTIP	(16)			(16)
Ending balance at Jun. 30, 2021	$ 154,851	$ 424	$ 13,655	$ 140,772

UNAUDITED CONDENSED CONSOLIDA_6

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Dividends per common share (in dollars per share)	$ 0.24	$ 0.24	$ 0.24	$ 0.24
Awards under LTIP (in dollars per share)	$ 0.24	$ 0.24	$ 0.24	$ 0.24

Organization and Basis of Prese

Organization and Basis of Presentation	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization Adams Resources & Energy, Inc. is a publicly traded Delaware corporation organized in 1973, the common shares of which are listed on the NYSE American LLC under the ticker symbol “AE”. Through our subsidiaries, we are primarily engaged in crude oil marketing, transportation, terminalling and storage in various crude oil and natural gas basins in the lower 48 states of the United States (“U.S.”). We also conduct tank truck transportation of liquid chemicals, pressurized gases, asphalt and dry bulk primarily in the lower 48 states of the U.S. with deliveries into Canada and Mexico, and with eighteen terminals across the U.S. Unless the context requires otherwise, references to “we,” “us,” “our” or “Company” are intended to mean the business and operations of Adams Resources & Energy, Inc. and its consolidated subsidiaries. We operate and report in three business segments: (i) crude oil marketing, transportation and storage; (ii) tank truck transportation of liquid chemicals, pressurized gases, asphalt and dry bulk; and (iii) pipeline transportation, terminalling and storage of crude oil. See Note 7 for further information regarding our business segments. Basis of Presentation Our results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of results expected for the full year of 2021. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring accruals necessary for fair presentation. The condensed consolidated financial statements and the accompanying notes are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial statements and the rules of the U.S. Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required by GAAP for complete annual financial statements have been omitted and, therefore, these interim financial statements should be read in conjunction with our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Form 10-K”) filed with the SEC on March 5, 2021. All significant intercompany transactions and balances have been eliminated in consolidation. Use of Estimates

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash and cash equivalents and restricted cash as reported in the unaudited condensed consolidated balance sheets that totals to the amounts shown in the unaudited condensed consolidated statements of cash flows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Cash and cash equivalents $ 88,668 $ 39,293 Restricted cash: Collateral for outstanding letters of credit (1) — 5,144 Captive insurance subsidiary (2) 7,033 7,628 Total cash, cash equivalents and restricted cash shown in the unaudited condensed consolidated statements of cash flows $ 95,701 $ 52,065 _____________ (1) Represents amounts held in a segregated bank account by Wells Fargo as collateral for outstanding letters of credit. Effective with our entry into a credit agreement (see Note 10), letters of credit are now secured under the credit agreement. (2) $1.5 million of the restricted cash balance relates to the initial capitalization of our captive insurance company formed in late 2020, and the remainder represents amounts paid to our captive insurance company for insurance premiums. Common Shares Outstanding The following table reconciles our outstanding common stock for the periods indicated: Common shares Balance, January 1, 2021 4,243,716 Vesting of restricted stock unit awards 8,544 Shares withheld to cover taxes upon vesting of restricted stock unit awards (1,245) Balance, March 31, 2021 4,251,015 Vesting of restricted stock unit awards 5,700 Vesting of performance share unit awards 2,461 Shares withheld to cover taxes upon vesting of equity awards (1,798) Balance, June 30, 2021 4,257,378 Earnings Per Share Basic earnings (losses) per share is computed by dividing our net earnings (losses) by the weighted average number of common shares outstanding during the period. Diluted earnings (losses) per share is computed by giving effect to all potential common shares outstanding, including our shares related to unvested restricted stock unit awards. Unvested restricted stock unit awards granted under the Adams Resources & Energy, Inc. 2018 Long-Term Incentive Plan (“2018 LTIP”) are not considered to be participating securities as the holders of these shares do not have non-forfeitable dividend rights in the event of our declaration of a dividend for common shares (see Note 12 for further discussion). A reconciliation of the calculation of basic and diluted earnings (losses) per share was as follows for the periods indicated (in thousands, except per share data): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Earnings (losses) per share — numerator: Net earnings (losses) $ 4,709 $ 3,503 $ 7,517 $ (7,924) Denominator: Basic weighted average number of shares outstanding 4,254 4,239 4,250 4,237 Basic earnings (losses) per share $ 1.11 $ 0.83 $ 1.77 $ (1.87) Diluted earnings (losses) per share: Diluted weighted average number of shares outstanding: Common shares 4,254 4,239 4,250 4,237 Restricted stock unit awards (1) 13 12 15 — Performance share unit awards (2) 6 2 7 — Total diluted shares 4,273 4,253 4,272 4,237 Diluted earnings (losses) per share $ 1.10 $ 0.82 $ 1.76 $ (1.87) _______________ (1) For the six months ended June 30, 2020, the effect of the restricted stock unit awards and the performance share awards on losses per share is anti-dilutive. (2) The dilutive effect of performance share awards are included in the calculation of diluted earnings per share when the performance share award performance conditions have been achieved. Fair Value Measurements The carrying amounts reported in the unaudited condensed consolidated balance sheets for cash and cash equivalents, accounts receivable and accounts payable approximates fair value because of the immediate or short-term maturity of these financial instruments. Marketable securities are recorded at fair value based on market quotations from actively traded liquid markets. A three-tier hierarchy has been established that classifies fair value amounts recognized in the financial statements based on the observability of inputs used to estimate these fair values. The hierarchy considers fair value amounts based on observable inputs (Levels 1 and 2) to be more reliable and predictable than those based primarily on unobservable inputs (Level 3). At each balance sheet reporting date, we categorize our financial assets and liabilities using this hierarchy. Fair value contracts consist of derivative financial instruments and are recorded as either an asset or liability measured at its fair value. Changes in fair value are recognized immediately in earnings unless the derivatives qualify for, and we elect, cash flow hedge accounting. We had no contracts designated for hedge accounting during any current reporting periods (see Note 11 for further information). Income Taxes Income taxes are accounted for using the asset and liability method. Under this approach, deferred tax assets and liabilities are recognized based on anticipated future tax consequences attributable to differences between financial statement carrying amounts of these items and their respective tax basis. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted and signed into law in response to the COVID-19 pandemic. The CARES Act, among other things, permits net operating losses (“NOL”) incurred in tax years 2018, 2019 and 2020 to offset 100 percent of taxable income and be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. We have determined that the NOL carryback provision in the CARES Act would result in a cash benefit to us for the fiscal years 2018 and 2019. We carried back our NOL for fiscal year 2018 to 2013, and in June 2020, we received a cash refund of approximately $2.7 million. We also carried back the NOL for the fiscal year 2019 to 2014, and in April 2021, we received a cash refund of approximately $3.7 million. We have an income tax receivable at June 30, 2021, of approximately $6.8 million for the benefit of carrying back the NOL for the fiscal year 2020 to 2015 and 2016. As we are carrying the losses back to years beginning before January 1, 2018, the receivable was recorded at the previous 35 percent federal tax rate rather than the current statutory rate of 21 percent. Inventory Inventory consists of crude oil held in storage tanks and at third-party pipelines as part of our crude oil marketing and pipeline and storage operations. Crude oil inventory is carried at the lower of cost or net realizable value. At the end of each reporting period, we assess the carrying value of our inventory and make adjustments necessary to reduce the carrying value to the applicable net realizable value. Any resulting adjustments are a component of marketing costs and expenses or pipeline and storage expenses on our consolidated statements of operations. During the six months ended June 30, 2020, we recorded a charge of $24.2 million related to the write-down of our crude oil inventory in our crude oil marketing segment due to declines in prices. Property and Equipment Property and equipment is recorded at cost. Expenditures for additions, improvements and other enhancements to property and equipment are capitalized, and minor replacements, maintenance and repairs that do not extend asset life or add value are charged to expense as incurred. When property and equipment assets are retired or otherwise disposed of, the related cost and accumulated depreciation is removed from the accounts and any resulting gain or loss is included in results of operations in operating costs and expenses for the respective period. Property and equipment, except for land, is depreciated using the straight-line method over the estimated average useful lives ranging from two We review our long-lived assets for impairment whenever there is evidence that the carrying value of these assets may not be recoverable. Any impairment recognized is permanent and may not be restored. Property and equipment is reviewed at the lowest level of identifiable cash flows. For property and equipment requiring impairment, the fair value is estimated based on an internal discounted cash flow model of future cash flows. See Note 5 for additional information regarding our property and equipment. Stock-Based Compensation We measure all share-based payment awards, including the issuance of restricted stock unit awards and performance share unit awards to employees and board members, using a fair-value based method. The cost of services received from employees and non-employee board members in exchange for awards of equity instruments is recognized in the consolidated statements of operations based on the estimated fair value of those awards on the grant date and is amortized on a straight-line basis over the requisite service period. The fair value of restricted stock unit awards and performance share unit awards is based on the closing price of our common stock on the grant date. We account for forfeitures as they occur. See Note 12 for additional information regarding our 2018 LTIP.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Revenue Disaggregation The following table disaggregates our revenue by segment and by major source for the periods indicated (in thousands): Reporting Segments Crude Oil Marketing Transportation Pipeline and storage Total Three Months Ended June 30, 2021 Revenues from contracts with customers $ 452,820 $ 23,497 $ 155 $ 476,472 Other (1) 10,272 — — 10,272 Total revenues $ 463,092 $ 23,497 $ 155 $ 486,744 Timing of revenue recognition: Goods transferred at a point in time $ 452,820 $ — $ — $ 452,820 Services transferred over time — 23,497 155 23,652 Total revenues from contracts with customers $ 452,820 $ 23,497 $ 155 $ 476,472 Three Months Ended June 30, 2020 Revenues from contracts with customers $ 131,529 $ 12,145 $ — $ 143,674 Other (1) 8,612 — — 8,612 Total revenues $ 140,141 $ 12,145 $ — $ 152,286 Timing of revenue recognition: Goods transferred at a point in time $ 131,529 $ — $ — $ 131,529 Services transferred over time — 12,145 — 12,145 Total revenues from contracts with customers $ 131,529 $ 12,145 $ — $ 143,674 Six Months Ended June 30, 2021 Revenues from contracts with customers $ 750,295 $ 44,732 $ 388 $ 795,415 Other (1) 16,820 — — 16,820 Total revenues $ 767,115 $ 44,732 $ 388 $ 812,235 Timing of revenue recognition: Goods transferred at a point in time $ 750,295 $ — $ — $ 750,295 Services transferred over time — 44,732 388 45,120 Total revenues from contracts with customers $ 750,295 $ 44,732 $ 388 $ 795,415 Six Months Ended June 30, 2020 Revenues from contracts with customers $ 451,246 $ 28,401 $ — $ 479,647 Other (1) 26,116 — — 26,116 Total revenues $ 477,362 $ 28,401 $ — $ 505,763 Timing of revenue recognition: Goods transferred at a point in time $ 451,246 $ — $ — $ 451,246 Services transferred over time — 28,401 — 28,401 Total revenues from contracts with customers $ 451,246 $ 28,401 $ — $ 479,647 _______________ (1) Other crude oil marketing revenues are recognized under Accounting Standards Codification (“ASC”) 815, Derivatives and Hedging , and ASC 845, Nonmonetary Transactions – Purchases and Sales of Inventory with the Same Counterparty . Other Crude Oil Marketing Revenue Certain of the commodity purchase and sale contracts utilized by our crude oil marketing business qualify as derivative instruments with certain specifically identified contracts also designated as trading activity. From the time of contract origination, these contracts are marked-to-market and recorded on a net revenue basis in the accompanying consolidated financial statements. Certain of our crude oil contracts may be with a single counterparty to provide for similar quantities of crude oil to be bought and sold at different locations. These contracts are entered into for a variety of reasons, including effecting the transportation of the commodity, to minimize credit exposure, and/or to meet the competitive demands of the customer. These buy/sell arrangements are reflected on a net revenue basis in the accompanying consolidated financial statements. Reporting these crude oil contracts on a gross revenue basis would increase our reported revenues as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Revenue gross-up $ 189,512 $ 60,044 $ 324,378 $ 217,483

Prepayments and Other Current A

Prepayments and Other Current Assets	6 Months Ended
	Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepayments and Other Current Assets	Prepayments and Other Current Assets The components of prepayments and other current assets were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Insurance premiums $ 847 $ 690 Vendor prepayment 193 1,085 Rents, licenses and other 1,082 1,189 Total prepayments and other current assets $ 2,122 $ 2,964

Property and Equipment

Property and Equipment	6 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment The historical costs of our property and equipment and related accumulated depreciation and amortization balances were as follows at the dates indicated (in thousands): Estimated Useful Life June 30, December 31, in Years 2021 2020 Tractors and trailers 5 – 6 $ 100,899 $ 101,813 Field equipment 2 – 5 22,779 22,139 Finance lease ROU assets (1) 3 – 6 22,349 20,266 Pipeline and related facilities 20 – 25 19,946 21,265 Linefill and base gas (2) N/A 3,333 3,333 Buildings 5 – 39 16,044 14,977 Office equipment 2 – 5 1,951 1,893 Land N/A 2,008 1,790 Construction in progress N/A 4,774 1,626 Total 194,083 189,102 Less accumulated depreciation and amortization (103,506) (94,968) Property and equipment, net $ 90,577 $ 94,134 _______________ (1) Our finance lease right-of-use (“ROU)” assets arise from leasing arrangements for the right to use various classes of underlying assets including tractors, trailers, a tank storage and throughput arrangement and office equipment (see Note 14 for further information). Accumulated amortization of the assets presented as “Finance lease ROU assets” was $7.4 million and $5.0 million at June 30, 2021 and December 31, 2020, respectively. (2) Linefill and base gas represents crude oil in the VEX pipeline and storage tanks we own, and the crude oil is recorded at historical cost. Components of depreciation and amortization expense were as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Depreciation and amortization, excluding amounts under finance leases $ 3,591 $ 3,725 $ 7,504 $ 7,645 Amortization of property and equipment under finance leases 1,210 553 2,350 1,106 Total depreciation and amortization $ 4,801 $ 4,278 $ 9,854 $ 8,751

Other Assets

Other Assets	6 Months Ended
	Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Components of other assets were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Amounts associated with liability insurance program: Insurance collateral deposits $ 714 $ 714 Excess loss fund 617 617 Accumulated interest income 469 449 Other amounts: State collateral deposits 36 31 Materials and supplies 509 488 Debt issuance costs 324 — Other 261 84 Total other assets $ 2,930 $ 2,383 We have established certain deposits to support participation in our liability insurance program and remittance of state crude oil severance taxes and other state collateral deposits. Insurance collateral deposits are held by the insurance company to cover past or potential open claims based upon a percentage of the maximum assessment under our insurance policies. Insurance collateral deposits are invested at the discretion of our insurance carrier. Excess amounts in our loss fund represent premium payments in excess of claims incurred to date that we may be entitled to recover through settlement or commutation as claim periods are closed. Interest income is earned on the majority of amounts held by the insurance companies and will be paid to us upon settlement of policy years.

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting We operate and report in three business segments: (i) crude oil marketing, transportation and storage; (ii) tank truck transportation of liquid chemicals, pressurized gases, asphalt and dry bulk; and (iii) pipeline transportation, terminalling and storage of crude oil. Financial information by reporting segment was as follows for the periods indicated (in thousands): Reporting Segments Crude Oil Marketing Transportation Pipeline and storage Other Total Three Months Ended June 30, 2021 Segment revenues (1) $ 463,092 $ 23,535 $ 651 $ — $ 487,278 Less: Intersegment revenues (1) — (38) (496) — (534) Revenues $ 463,092 $ 23,497 $ 155 $ — $ 486,744 Segment operating earnings (losses) (2) 8,370 1,482 (556) — 9,296 Depreciation and amortization 1,641 2,937 223 — 4,801 Property and equipment additions (3) 492 2,761 179 — 3,432 Three Months Ended June 30, 2020 Segment revenues $ 140,141 $ 12,145 $ — $ — $ 152,286 Less: Intersegment revenues — — — — — Revenues $ 140,141 $ 12,145 $ — $ — $ 152,286 Segment operating earnings (losses) (2) 6,830 (1,164) — — 5,666 Depreciation and amortization 1,857 2,421 — — 4,278 Property and equipment additions (3) (4) 18 323 — 327 668 Six Months Ended June 30, 2021 Segment revenues (1) $ 767,115 $ 44,803 $ 1,070 $ — $ 812,988 Less: Intersegment revenues (1) — (71) (682) — (753) Revenues $ 767,115 $ 44,732 $ 388 $ — $ 812,235 Segment operating earnings (losses) (2) 15,388 2,256 (1,121) — 16,523 Depreciation and amortization 3,439 5,938 477 — 9,854 Property and equipment additions (3) (4) 702 2,703 189 8 3,602 Six Months Ended June 30, 2020 Segment revenues $ 477,362 $ 28,401 $ — $ — $ 505,763 Less: Intersegment revenues — — — — — Revenues $ 477,362 $ 28,401 $ — $ — $ 505,763 Segment operating earnings (losses) (2) (10,821) (559) — — (11,380) Depreciation and amortization 3,864 4,887 — — 8,751 Property and equipment additions (3) (4) 2,050 364 — 466 2,880 _______________ (1) Segment revenues include intersegment amounts that are eliminated in operating costs and expenses in our unaudited condensed consolidated statements of operations. Intersegment activities are conducted at posted tariff rates where applicable, or otherwise at rates similar to those charged to third parties or rates that we believe approximate market at the time the agreement is executed. (2) Our crude oil marketing segment’s operating (losses) earnings included inventory liquidation gains of $3.7 million and $6.0 million for the three months ended June 30, 2021 and 2020, respectively. For the six months ended June 30, 2021 and 2020, our crude oil marketing segment’s operating (losses) earnings included inventory liquidation gains of $10.6 million and inventory valuation losses of $18.2 million, respectively. (3) Our segment property and equipment additions do not include assets acquired under finance leases during the three and six months ended June 30, 2021 and 2020. See Note 14 for further information. (4) During the three months ended June 30, 2020 and the six months ended June 30, 2021 and 2020, we had $0.3 million, $8.0 thousand and $0.5 million, respectively, of property and equipment additions for computer equipment and leasehold improvements at our corporate headquarters, which were not attributed or allocated to any of our reporting segments. Segment operating earnings (losses) reflect revenues net of operating costs and depreciation and amortization expense and are reconciled to earnings (losses) before income taxes, as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Segment operating earnings (losses) $ 9,296 $ 5,666 $ 16,523 $ (11,380) General and administrative (2,961) (2,731) (6,337) (5,625) Operating earnings (losses) 6,335 2,935 10,186 (17,005) Interest and other income 62 144 196 509 Interest expense (204) (68) (424) (218) Earnings (losses) before income taxes $ 6,193 $ 3,011 $ 9,958 $ (16,714) Identifiable assets by business segment were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Reporting segment: Crude oil marketing $ 165,072 $ 128,441 Transportation 68,110 72,247 Pipeline and storage 24,253 24,541 Cash and other (1) 107,571 70,958 Total assets $ 365,006 $ 296,187 _______________ (1) Other identifiable assets are primarily corporate cash, corporate accounts receivable, properties and operating lease right-of-use assets not identified with any specific segment of our business.

Transactions with Affiliates

Transactions with Affiliates	6 Months Ended
	Jun. 30, 2021
Related Party Transactions [Abstract]
Transactions with Affiliates	Transactions with Affiliates We enter into certain transactions in the normal course of business with affiliated entities including direct cost reimbursement for shared phone and administrative services from KSA Industries, Inc. (“KSA”), an affiliated entity. We lease our corporate office space in a building operated by 17 South Briar Hollow Lane, LLC, an affiliate of KSA. Activities with affiliates were as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Affiliate billings to us $ — $ 15 $ 12 $ 32 Billings to affiliates 5 1 6 2 Rentals paid to affiliate 143 122 317 244

Other Current Liabilities

Other Current Liabilities	6 Months Ended
	Jun. 30, 2021
Other Liabilities Disclosure [Abstract]
Other Current Liabilities	Other Current Liabilities The components of other current liabilities were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Accrued purchase price for VEX acquisition $ — $ 10,000 Accrual for payroll, benefits and bonuses 6,354 6,575 Accrued automobile and workers’ compensation claims 4,345 3,171 Accrued medical claims 1,422 915 Accrued taxes 799 772 Other 636 910 Total other current liabilities $ 13,556 $ 22,343

Credit Agreement

Credit Agreement	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Credit Agreement	Credit AgreementOn May 4, 2021, we entered into a Credit Agreement (“Credit Agreement”) with Wells Fargo Bank, National Association, as Agent and Issuing Lender, under which we may borrow or issue letters of credit in an aggregate of up to $40.0 million under a revolving credit facility (the “Revolving Credit Facility”), which will mature on May 4, 2024, subject to our compliance with certain financial covenants. At June 30, 2021, we had $8.0 million of borrowings outstanding under the Credit Agreement at a weighted average interest rate of 2.75 percent per annum and $9.2 million of letters of credit issued under the Credit Agreement at a fee of 1.75 percent per annum. For each borrowing under the Revolving Credit Facility, we can elect whether the loans bear interest at (i) the Base Rate plus Applicable Margin; or (ii) the LIBOR Rate plus Applicable Margin. Base Rate is the highest of (a) the Prime Rate, (b) the Federal Funds Rate, plus 0.50 percent and (c) LIBOR for an interest period of three months plus 1.00 percent. The Applicable Margin to be added to a Base Rate borrowing is 0.75 percent. The LIBOR Rate is (x) LIBOR (which shall not be less than 1.00 percent) divided by (y) 1.00 minus the Eurodollar Reserve Percentage. The Applicable Margin to be added to a LIBOR borrowing is 1.75 percent. A commitment fee of 0.25 percent per annum will accrue on the daily average unused amount of the commitments under the Revolving Credit Facility. Under the Credit Agreement, we are required to maintain compliance with the following financial covenants on a pro forma basis, after giving effect to any borrowings (in each case commencing with the fiscal quarter ending June 30, 2021): (i) the Consolidated Total Leverage Ratio, which is the ratio of (a) Consolidated Funded Indebtedness on such date to (b) Consolidated EBITDA for the most recently completed Reference Period shall not be greater than 3.00 to 1.00.; (ii) the Current Ratio, which is (a) consolidated current assets to (b) consolidated current liabilities, in each case with certain exclusions, shall not be less than 1.25 to 1.00; (iii) Consolidated Interest Coverage Ratio, which is the ratio of (a) Consolidated EBITDA for the most recently completed Reference Period to (b) Consolidated Interest Expense for the most recently completed Reference Period shall be not be less than 3.00 to 1.00; and (iv) the Consolidated Tangible Net Worth, which is (a) our shareholders’, equity as shown on our consolidated statement of financial position, with certain exclusions, minus (b) all goodwill and intangible assets as of such date shall not be less than $100.0 million. The Reference Period means the most recently completed four consecutive fiscal quarters. Consolidated EBITDA is defined under the Credit Agreement as: (a) Consolidated Net Income for such period plus (b) the sum of the following, without duplication, to the extent deducted in determining Consolidated Net Income for such period: (i) Consolidated Interest Expense; (ii) expense for taxes measured by net income, profits or capital (or any similar measures), paid or accrued, including federal and state and local income taxes, foreign income taxes and franchise taxes; and (iii) depreciation, amortization and other non-cash charges or expenses, excluding any non-cash charge or expense that represents an accrual for a cash expense to be taken in a future period; less (c) the sum of the following, without duplication, to the extent included in determining Consolidated Net Income for such period: (i) interest income, (ii) federal, state, local and foreign income tax credits us and our subsidiaries for such period (to the extent not netted from income tax expense); (iii) any unusual and non-recurring gains; (iv) non-cash gains or non-cash items; and (v) any cash expense made during such period which represents the reversal of any non-cash expense that was added in a prior period pursuant to clause (b)(iii) above subsequent to the fiscal quarter in which the relevant non-cash expenses, charges or losses were incurred. The Credit Agreement contains certain customary representations and warranties and affirmative and negative covenants. The affirmative covenants require us to provide the lenders with certain financial statements, business plans, compliance certificates and other documents and reports and to comply with certain laws. The negative covenants restrict each of the borrowers’ ability to incur additional indebtedness, create additional liens on its assets, make certain investments, dispose of its assets or engage in a merger or other similar transaction or engage in transactions with affiliates, subject, in each case, to the various exceptions and conditions described in the Credit Agreement. The negative covenants further restrict our ability to make certain restricted payments. Our obligations under the Credit Agreement are secured by a pledge of substantially all of our personal property and substantially all of the personal property of certain of our other direct and indirect subsidiaries.

Derivative Instruments and Fair

Derivative Instruments and Fair Value Measurements	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Fair Value Measurements	Derivative Instruments and Fair Value Measurements Derivative Instruments In the normal course of our operations, our crude oil marketing segment purchases and sells crude oil. We seek to profit by procuring the commodity as it is produced and then delivering the material to the end users or the intermediate use marketplace. As typical for the industry, these transactions are made pursuant to the terms of forward month commodity purchase and/or sale contracts. Some of these contracts meet the definition of a derivative instrument, and therefore, we account for these contracts at fair value, unless the normal purchase and sale exception is applicable. These types of underlying contracts are standard for the industry and are the governing document for our crude oil marketing segment. None of our derivative instruments have been designated as hedging instruments. At June 30, 2021, we had in place seven commodity purchase and sale contracts which had a fair value associated with them as the contractual prices of crude oil were outside of the range of prices specified in the agreements. These commodity purchase and sale contracts encompassed approximately 740 barrels per day of crude oil during July 2021 through December 2021. At December 31, 2020, we had in place six commodity purchase and sale contracts, of which three had a fair value associated with them as the contractual prices of crude oil were outside the range of prices specified in the agreements. These commodity purchase and sale contracts encompassed approximately 192 barrels per day of crude oil during January 2021 through December 2021. The estimated fair value of forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated balance sheets were as follows at the dates indicated (in thousands): Balance Sheet Location and Amount Current Other Current Other Assets Assets Liabilities Liabilities June 30, 2021 Asset derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation $ 1,255 $ — $ — $ — Liability derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation — — 1,221 — Less counterparty offsets — — — — As reported fair value contracts $ 1,255 $ — $ 1,221 $ — December 31, 2020 Asset derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation $ 61 $ — $ — $ — Liability derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation — — 52 — Less counterparty offsets — — — — As reported fair value contracts $ 61 $ — $ 52 $ — We only enter into commodity contracts with creditworthy counterparties and evaluate our exposure to significant counterparties on an ongoing basis. At June 30, 2021 and December 31, 2020, we were not holding nor have we posted any collateral to support our forward month fair value derivative activity. We are not subject to any credit-risk related trigger events. We have no other financial investment arrangements that would serve to offset our derivative contracts. Forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated statements of operations were as follows for the periods indicated (in thousands): Gains (losses) Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Revenues – marketing $ 5 $ (7) $ 25 $ 12 Fair Value Measurements The following tables set forth, by level with the Level 1, 2 and 3 fair value hierarchy, the carrying values of our financial assets and liabilities at the dates indicated (in thousands): Fair Value Measurements Using Quoted Prices in Active Significant Markets for Other Significant Identical Assets Observable Unobservable and Liabilities Inputs Inputs Counterparty (Level 1) (Level 2) (Level 3) Offsets Total June 30, 2021 Derivatives: Current assets $ — $ 1,255 $ — $ — $ 1,255 Current liabilities — (1,221) — — (1,221) Net value $ — $ 34 $ — $ — $ 34 December 31, 2020 Derivatives: Current assets $ — $ 61 $ — $ — $ 61 Current liabilities — (52) — — (52) Net value $ — $ 9 $ — $ — $ 9 These assets and liabilities are measured on a recurring basis and are classified based on the lowest level of input used to estimate their fair value. Our assessment of the relative significance of these inputs requires judgments. When determining fair value measurements, we make credit valuation adjustments to reflect both our own nonperformance risk and our counterparty’s nonperformance risk. When adjusting the fair value of derivative contracts for the effect of nonperformance risk, we consider the impact of netting and any applicable credit enhancements. Credit valuation adjustments utilize Level 3 inputs, such as credit scores to evaluate the likelihood of default by us or our counterparties. At June 30, 2021 and December 31, 2020, credit valuation adjustments were not significant to the overall valuation of our fair value contracts. As a result, applicable fair value assets and liabilities are included in their entirety in the fair value hierarchy.

Stock-Based Compensation Plan

Stock-Based Compensation Plan	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation Plan	Stock-Based Compensation Plan We have in place a long-term incentive plan in which any employee or non-employee director who provides services to us is eligible to participate. The 2018 LTIP, which is overseen by the Compensation Committee of our Board of Directors, provides for the grant of various types of equity awards, of which restricted stock unit awards and performance-based compensation awards have been granted. The maximum number of shares authorized for issuance under the 2018 LTIP is 150,000 shares, and the 2018 LTIP is effective until May 8, 2028. After giving effect to awards granted and forfeitures made under the 2018 LTIP, the achievement of performance factors through December 31, 2020, and assuming the potential achievement of the maximum amounts of the performance factors through June 30, 2021, a total of 38,525 shares were available for issuance. Compensation expense recognized in connection with equity-based awards was as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Compensation expense $ 232 $ 170 $ 417 $ 304 At June 30, 2021 and December 31, 2020, we had $55,600 and $50,800, respectively, of accrued dividend amounts for awards granted under the 2018 LTIP. Restricted Stock Unit Awards The following table presents restricted stock unit award activity for the periods indicated: Weighted- Average Grant Number of Date Fair Value Shares per Share (1) Restricted stock unit awards at January 1, 2021 27,490 $ 28.64 Granted (2) 26,369 $ 29.70 Vested (14,244) $ 30.20 Forfeited (764) $ 28.71 Restricted stock unit awards at June 30, 2021 38,851 $ 28.79 _______________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued. (2) The aggregate grant date fair value of restricted stock unit awards issued during 2021 was $0.8 million based on a grant date market price of our common shares ranging from $29.70 to $30.00 per share. Unrecognized compensation cost associated with restricted stock unit awards was approximately $0.7 million at June 30, 2021. Due to the graded vesting provisions of these awards, we expect to recognize the remaining compensation cost for these awards over a weighted-average period of 1.5 years. Performance Share Unit Awards The following table presents performance share unit award activity for the periods indicated: Weighted- Average Grant Number of Date Fair Value Shares per Share (1) Performance share unit awards at January 1, 2021 16,241 $ 27.67 Granted (2) 12,205 $ 29.70 Vested (2,461) $ 43.00 Forfeited — $ — Performance share unit awards at June 30, 2021 25,985 $ 27.17 _______________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued. (2) The aggregate grant date fair value of performance share unit awards issued during 2021 was $0.4 million based on a grant date market price of our common shares of $29.70 per share and assuming a performance factor of 100 percent. Unrecognized compensation cost associated with performance share unit awards was approximately $0.5 million at June 30, 2021. We expect to recognize the remaining compensation cost for these awards over a weighted-average period of 2.5 years.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Jun. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information Supplemental cash flows and non-cash transactions were as follows for the periods indicated (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for interest $ 424 $ 218 Cash paid for federal and state income taxes 258 182 Cash refund for NOL carryback under CARES Act 3,712 2,703 Non-cash transactions: Change in accounts payable related to property and equipment additions (1,238) (1,237) Property and equipment acquired under finance leases 2,083 1,656

Leases

Leases	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	Leases The following table provides the components of lease expense for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Finance lease cost: Amortization of ROU assets $ 1,210 $ 553 $ 2,350 $ 1,106 Interest on lease liabilities 110 68 220 142 Operating lease cost 623 678 1,247 1,357 Short-term lease cost 3,448 2,169 6,698 4,671 Variable lease cost 1 — 2 — Total lease expense $ 5,392 $ 3,468 $ 10,517 $ 7,276 The following table provides supplemental cash flow and other information related to leases for the periods indicated (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for amounts included in measurement of lease liabilities: Operating cash flows from operating leases (1) $ 1,244 $ 1,354 Operating cash flows from finance leases 187 201 Financing cash flows from finance leases 2,123 1,070 ROU assets obtained in exchange for new lease liabilities: Finance leases 2,083 1,656 Operating leases 285 162 ______________ (1) Amounts are included in Other operating activities on the unaudited condensed consolidated statements of cash flows. The following table provides the lease terms and discount rates for the periods indicated: Six Months Ended June 30, 2021 2020 Weighted-average remaining lease term (years): Finance leases 3.92 4.40 Operating leases 4.13 4.38 Weighted-average discount rate: Finance leases 2.7% 4.2% Operating leases 4.2% 5.0% The following table provides supplemental balance sheet information related to leases at the dates indicated (in thousands): June 30, December 31, 2021 2020 Assets Finance lease ROU assets (1) $ 14,982 $ 15,251 Operating lease ROU assets 7,249 8,051 Liabilities Current Finance lease liabilities 4,333 4,112 Operating lease liabilities 2,184 2,050 Noncurrent Finance lease liabilities 11,246 11,507 Operating lease liabilities 5,067 6,000 ______________ (1) Amounts are included in Property and equipment, net on the unaudited condensed consolidated balance sheets. The following table provides maturities of undiscounted lease liabilities at June 30, 2021 (in thousands): Finance Operating Lease Lease Remainder of 2021 $ 2,437 $ 1,231 2022 3,941 2,142 2023 3,143 1,839 2024 2,348 1,702 2025 3,771 222 Thereafter 801 674 Total lease payments 16,441 7,810 Less: Interest (862) (559) Present value of lease liabilities 15,579 7,251 Less: Current portion of lease obligation (4,333) (2,184) Total long-term lease obligation $ 11,246 $ 5,067 The following table provides maturities of undiscounted lease liabilities at December 31, 2020 (in thousands): Finance Operating Lease Lease 2021 $ 4,496 $ 2,343 2022 3,562 2,002 2023 2,764 1,821 2024 1,969 1,700 2025 2,992 222 Thereafter 802 675 Total lease payments 16,585 8,763 Less: Interest (966) (713) Present value of lease liabilities 15,619 8,050 Less: Current portion of lease obligation (4,112) (2,050) Total long-term lease obligation $ 11,507 $ 6,000
Leases	Leases The following table provides the components of lease expense for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Finance lease cost: Amortization of ROU assets $ 1,210 $ 553 $ 2,350 $ 1,106 Interest on lease liabilities 110 68 220 142 Operating lease cost 623 678 1,247 1,357 Short-term lease cost 3,448 2,169 6,698 4,671 Variable lease cost 1 — 2 — Total lease expense $ 5,392 $ 3,468 $ 10,517 $ 7,276 The following table provides supplemental cash flow and other information related to leases for the periods indicated (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for amounts included in measurement of lease liabilities: Operating cash flows from operating leases (1) $ 1,244 $ 1,354 Operating cash flows from finance leases 187 201 Financing cash flows from finance leases 2,123 1,070 ROU assets obtained in exchange for new lease liabilities: Finance leases 2,083 1,656 Operating leases 285 162 ______________ (1) Amounts are included in Other operating activities on the unaudited condensed consolidated statements of cash flows. The following table provides the lease terms and discount rates for the periods indicated: Six Months Ended June 30, 2021 2020 Weighted-average remaining lease term (years): Finance leases 3.92 4.40 Operating leases 4.13 4.38 Weighted-average discount rate: Finance leases 2.7% 4.2% Operating leases 4.2% 5.0% The following table provides supplemental balance sheet information related to leases at the dates indicated (in thousands): June 30, December 31, 2021 2020 Assets Finance lease ROU assets (1) $ 14,982 $ 15,251 Operating lease ROU assets 7,249 8,051 Liabilities Current Finance lease liabilities 4,333 4,112 Operating lease liabilities 2,184 2,050 Noncurrent Finance lease liabilities 11,246 11,507 Operating lease liabilities 5,067 6,000 ______________ (1) Amounts are included in Property and equipment, net on the unaudited condensed consolidated balance sheets. The following table provides maturities of undiscounted lease liabilities at June 30, 2021 (in thousands): Finance Operating Lease Lease Remainder of 2021 $ 2,437 $ 1,231 2022 3,941 2,142 2023 3,143 1,839 2024 2,348 1,702 2025 3,771 222 Thereafter 801 674 Total lease payments 16,441 7,810 Less: Interest (862) (559) Present value of lease liabilities 15,579 7,251 Less: Current portion of lease obligation (4,333) (2,184) Total long-term lease obligation $ 11,246 $ 5,067 The following table provides maturities of undiscounted lease liabilities at December 31, 2020 (in thousands): Finance Operating Lease Lease 2021 $ 4,496 $ 2,343 2022 3,562 2,002 2023 2,764 1,821 2024 1,969 1,700 2025 2,992 222 Thereafter 802 675 Total lease payments 16,585 8,763 Less: Interest (966) (713) Present value of lease liabilities 15,619 8,050 Less: Current portion of lease obligation (4,112) (2,050) Total long-term lease obligation $ 11,507 $ 6,000

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Insurance We have accrued liabilities for estimated workers’ compensation and other casualty claims incurred based upon claim reserves plus an estimate for loss development and incurred but not reported claims. We self-insure a significant portion of expected losses relating to workers’ compensation, general liability and automobile liability, with a self-insured retention of $1.0 million. Insurance is purchased over our retention to reduce our exposure to catastrophic events. We also share 20 percent of the risk of loss, capped at $1.0 million for any claims in excess of $5.0 million. Estimates are recorded for potential and incurred outstanding liabilities for workers’ compensation, auto and general liability claims and claims that are incurred but not reported. Estimates are based on adjusters’ estimates, historical experience and statistical methods commonly used within the insurance industry that we believe are reliable. We have also engaged a third-party actuary to perform a review of our accrued liability for these claims as well as potential funded losses in our captive insurance company. Insurance estimates include certain assumptions and management judgments regarding the frequency and severity of claims, claim development and settlement practices and the selection of estimated loss among estimates derived using different methods. Unanticipated changes in these factors may produce materially different amounts of expense that would be reported under these programs. On October 1, 2020, we elected to utilize a wholly owned insurance captive to insure the self-insured retention for our workers’ compensation, general liability and automobile liability insurance programs. All accrued liabilities associated with periods from October 1, 2017 through current were transferred to the captive. We maintain excess property and casualty reinsurance programs with third-party insurers in an effort to limit the financial impact of significant events covered under these programs. Our operating subsidiaries pay premiums to both the excess and reinsurance carriers and our captive for the estimated losses based on an external actuarial analysis. These premiums held by our wholly owned captive are currently held in a restricted account, resulting in a transfer of risk from our operating subsidiaries to the captive. We also maintain a self-insurance program for managing employee medical claims in excess of employee deductibles. As claims are paid, the liability is relieved. We also maintain third party insurance stop-loss coverage for individual medical claims exceeding a certain minimum threshold . In addition, we maintain $1.4 million of umbrella insurance coverage for annual aggregate medical claims exceeding approximately $7.5 million. Our accruals for automobile, workers’ compensation and medical claims were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Pre-funded premiums for losses incurred but not reported $ 57 $ 55 Accrued automobile and workers’ compensation claims 4,345 3,171 Accrued medical claims 1,422 915 Litigation From time to time as incidental to our operations, we may become involved in various lawsuits and/or disputes. Primarily as an operator of an extensive trucking fleet, we are a party to motor vehicle accidents, worker compensation claims and other items of general liability as would be typical for the industry. We are presently unaware of any claims against us that are either outside the scope of insurance coverage or that may exceed the level of insurance coverage and could potentially represent a material adverse effect on our financial position, results of operations or cash flows.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Organization	Organization Adams Resources & Energy, Inc. is a publicly traded Delaware corporation organized in 1973, the common shares of which are listed on the NYSE American LLC under the ticker symbol “AE”. Through our subsidiaries, we are primarily engaged in crude oil marketing, transportation, terminalling and storage in various crude oil and natural gas basins in the lower 48 states of the United States (“U.S.”). We also conduct tank truck transportation of liquid chemicals, pressurized gases, asphalt and dry bulk primarily in the lower 48 states of the U.S. with deliveries into Canada and Mexico, and with eighteen terminals across the U.S. Unless the context requires otherwise, references to “we,” “us,” “our” or “Company” are intended to mean the business and operations of Adams Resources & Energy, Inc. and its consolidated subsidiaries.
Basis of Presentation	Basis of Presentation Our results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of results expected for the full year of 2021. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring accruals necessary for fair presentation. The condensed consolidated financial statements and the accompanying notes are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial statements and the rules of the U.S. Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required by GAAP for complete annual financial statements have been omitted and, therefore, these interim financial statements should be read in conjunction with our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Form 10-K”) filed with the SEC on March 5, 2021. All significant intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	Use of EstimatesThe preparation of our financial statements in conformity with GAAP requires management to use estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We base our estimates and judgments on historical experience and on various other assumptions and information we believe to be reasonable under the circumstances. Estimates and assumptions about future events and their effects cannot be perceived with certainty and, accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as the operating environment changes. While we believe the estimates and assumptions used in the preparation of these condensed consolidated financial statements are appropriate, actual results could differ from those estimates.
Earnings Per Share	Earnings Per ShareBasic earnings (losses) per share is computed by dividing our net earnings (losses) by the weighted average number of common shares outstanding during the period. Diluted earnings (losses) per share is computed by giving effect to all potential common shares outstanding, including our shares related to unvested restricted stock unit awards. Unvested restricted stock unit awards granted under the Adams Resources & Energy, Inc. 2018 Long-Term Incentive Plan (“2018 LTIP”) are not considered to be participating securities as the holders of these shares do not have non-forfeitable dividend rights in the event of our declaration of a dividend for common shares (see Note 12 for further discussion).
Fair Value Measurements	Fair Value Measurements The carrying amounts reported in the unaudited condensed consolidated balance sheets for cash and cash equivalents, accounts receivable and accounts payable approximates fair value because of the immediate or short-term maturity of these financial instruments. Marketable securities are recorded at fair value based on market quotations from actively traded liquid markets. A three-tier hierarchy has been established that classifies fair value amounts recognized in the financial statements based on the observability of inputs used to estimate these fair values. The hierarchy considers fair value amounts based on observable inputs (Levels 1 and 2) to be more reliable and predictable than those based primarily on unobservable inputs (Level 3). At each balance sheet reporting date, we categorize our financial assets and liabilities using this hierarchy.
Income Taxes	Income Taxes Income taxes are accounted for using the asset and liability method. Under this approach, deferred tax assets and liabilities are recognized based on anticipated future tax consequences attributable to differences between financial statement carrying amounts of these items and their respective tax basis.
Inventory	InventoryInventory consists of crude oil held in storage tanks and at third-party pipelines as part of our crude oil marketing and pipeline and storage operations. Crude oil inventory is carried at the lower of cost or net realizable value. At the end of each reporting period, we assess the carrying value of our inventory and make adjustments necessary to reduce the carrying value to the applicable net realizable value. Any resulting adjustments are a component of marketing costs and expenses or pipeline and storage expenses on our consolidated statements of operations. During the six months ended June 30, 2020, we recorded a charge of $24.2 million related to the write-down of our crude oil inventory in our crude oil marketing segment due to declines in prices.
Property and Equipment	Property and Equipment Property and equipment is recorded at cost. Expenditures for additions, improvements and other enhancements to property and equipment are capitalized, and minor replacements, maintenance and repairs that do not extend asset life or add value are charged to expense as incurred. When property and equipment assets are retired or otherwise disposed of, the related cost and accumulated depreciation is removed from the accounts and any resulting gain or loss is included in results of operations in operating costs and expenses for the respective period. Property and equipment, except for land, is depreciated using the straight-line method over the estimated average useful lives ranging from two We review our long-lived assets for impairment whenever there is evidence that the carrying value of these assets may not be recoverable. Any impairment recognized is permanent and may not be restored. Property and equipment is reviewed at the lowest level of identifiable cash flows. For property and equipment requiring impairment, the fair value is estimated based on an internal discounted cash flow model of future cash flows.
Stock-Based Compensation	Stock-Based CompensationWe measure all share-based payment awards, including the issuance of restricted stock unit awards and performance share unit awards to employees and board members, using a fair-value based method. The cost of services received from employees and non-employee board members in exchange for awards of equity instruments is recognized in the consolidated statements of operations based on the estimated fair value of those awards on the grant date and is amortized on a straight-line basis over the requisite service period. The fair value of restricted stock unit awards and performance share unit awards is based on the closing price of our common stock on the grant date. We account for forfeitures as they occur.
Other Crude Oil Marketing Revenue	Other Crude Oil Marketing Revenue Certain of the commodity purchase and sale contracts utilized by our crude oil marketing business qualify as derivative instruments with certain specifically identified contracts also designated as trading activity. From the time of contract origination, these contracts are marked-to-market and recorded on a net revenue basis in the accompanying consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Cash and Cash Equivalents and Restricted Cash	The following table provides a reconciliation of cash and cash equivalents and restricted cash as reported in the unaudited condensed consolidated balance sheets that totals to the amounts shown in the unaudited condensed consolidated statements of cash flows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Cash and cash equivalents $ 88,668 $ 39,293 Restricted cash: Collateral for outstanding letters of credit (1) — 5,144 Captive insurance subsidiary (2) 7,033 7,628 Total cash, cash equivalents and restricted cash shown in the unaudited condensed consolidated statements of cash flows $ 95,701 $ 52,065 _____________ (1) Represents amounts held in a segregated bank account by Wells Fargo as collateral for outstanding letters of credit. Effective with our entry into a credit agreement (see Note 10), letters of credit are now secured under the credit agreement.
Schedule of Common Stock Outstanding	The following table reconciles our outstanding common stock for the periods indicated: Common shares Balance, January 1, 2021 4,243,716 Vesting of restricted stock unit awards 8,544 Shares withheld to cover taxes upon vesting of restricted stock unit awards (1,245) Balance, March 31, 2021 4,251,015 Vesting of restricted stock unit awards 5,700 Vesting of performance share unit awards 2,461 Shares withheld to cover taxes upon vesting of equity awards (1,798) Balance, June 30, 2021 4,257,378
Schedule of Earnings Per Share, Basic and Diluted	A reconciliation of the calculation of basic and diluted earnings (losses) per share was as follows for the periods indicated (in thousands, except per share data): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Earnings (losses) per share — numerator: Net earnings (losses) $ 4,709 $ 3,503 $ 7,517 $ (7,924) Denominator: Basic weighted average number of shares outstanding 4,254 4,239 4,250 4,237 Basic earnings (losses) per share $ 1.11 $ 0.83 $ 1.77 $ (1.87) Diluted earnings (losses) per share: Diluted weighted average number of shares outstanding: Common shares 4,254 4,239 4,250 4,237 Restricted stock unit awards (1) 13 12 15 — Performance share unit awards (2) 6 2 7 — Total diluted shares 4,273 4,253 4,272 4,237 Diluted earnings (losses) per share $ 1.10 $ 0.82 $ 1.76 $ (1.87) _______________ (1) For the six months ended June 30, 2020, the effect of the restricted stock unit awards and the performance share awards on losses per share is anti-dilutive.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table disaggregates our revenue by segment and by major source for the periods indicated (in thousands): Reporting Segments Crude Oil Marketing Transportation Pipeline and storage Total Three Months Ended June 30, 2021 Revenues from contracts with customers $ 452,820 $ 23,497 $ 155 $ 476,472 Other (1) 10,272 — — 10,272 Total revenues $ 463,092 $ 23,497 $ 155 $ 486,744 Timing of revenue recognition: Goods transferred at a point in time $ 452,820 $ — $ — $ 452,820 Services transferred over time — 23,497 155 23,652 Total revenues from contracts with customers $ 452,820 $ 23,497 $ 155 $ 476,472 Three Months Ended June 30, 2020 Revenues from contracts with customers $ 131,529 $ 12,145 $ — $ 143,674 Other (1) 8,612 — — 8,612 Total revenues $ 140,141 $ 12,145 $ — $ 152,286 Timing of revenue recognition: Goods transferred at a point in time $ 131,529 $ — $ — $ 131,529 Services transferred over time — 12,145 — 12,145 Total revenues from contracts with customers $ 131,529 $ 12,145 $ — $ 143,674 Six Months Ended June 30, 2021 Revenues from contracts with customers $ 750,295 $ 44,732 $ 388 $ 795,415 Other (1) 16,820 — — 16,820 Total revenues $ 767,115 $ 44,732 $ 388 $ 812,235 Timing of revenue recognition: Goods transferred at a point in time $ 750,295 $ — $ — $ 750,295 Services transferred over time — 44,732 388 45,120 Total revenues from contracts with customers $ 750,295 $ 44,732 $ 388 $ 795,415 Six Months Ended June 30, 2020 Revenues from contracts with customers $ 451,246 $ 28,401 $ — $ 479,647 Other (1) 26,116 — — 26,116 Total revenues $ 477,362 $ 28,401 $ — $ 505,763 Timing of revenue recognition: Goods transferred at a point in time $ 451,246 $ — $ — $ 451,246 Services transferred over time — 28,401 — 28,401 Total revenues from contracts with customers $ 451,246 $ 28,401 $ — $ 479,647 _______________ (1) Other crude oil marketing revenues are recognized under Accounting Standards Codification (“ASC”) 815, Derivatives and Hedging , and ASC 845, Nonmonetary Transactions – Purchases and Sales of Inventory with the Same Counterparty
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Reporting these crude oil contracts on a gross revenue basis would increase our reported revenues as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Revenue gross-up $ 189,512 $ 60,044 $ 324,378 $ 217,483

Prepayments and Other Current_2

Prepayments and Other Current Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Components of Prepayments and Other Current Assets	The components of prepayments and other current assets were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Insurance premiums $ 847 $ 690 Vendor prepayment 193 1,085 Rents, licenses and other 1,082 1,189 Total prepayments and other current assets $ 2,122 $ 2,964

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Abstract]
Property and equipment	The historical costs of our property and equipment and related accumulated depreciation and amortization balances were as follows at the dates indicated (in thousands): Estimated Useful Life June 30, December 31, in Years 2021 2020 Tractors and trailers 5 – 6 $ 100,899 $ 101,813 Field equipment 2 – 5 22,779 22,139 Finance lease ROU assets (1) 3 – 6 22,349 20,266 Pipeline and related facilities 20 – 25 19,946 21,265 Linefill and base gas (2) N/A 3,333 3,333 Buildings 5 – 39 16,044 14,977 Office equipment 2 – 5 1,951 1,893 Land N/A 2,008 1,790 Construction in progress N/A 4,774 1,626 Total 194,083 189,102 Less accumulated depreciation and amortization (103,506) (94,968) Property and equipment, net $ 90,577 $ 94,134 _______________ (1) Our finance lease right-of-use (“ROU)” assets arise from leasing arrangements for the right to use various classes of underlying assets including tractors, trailers, a tank storage and throughput arrangement and office equipment (see Note 14 for further information). Accumulated amortization of the assets presented as “Finance lease ROU assets” was $7.4 million and $5.0 million at June 30, 2021 and December 31, 2020, respectively. (2) Linefill and base gas represents crude oil in the VEX pipeline and storage tanks we own, and the crude oil is recorded at historical cost. Components of depreciation and amortization expense were as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Depreciation and amortization, excluding amounts under finance leases $ 3,591 $ 3,725 $ 7,504 $ 7,645 Amortization of property and equipment under finance leases 1,210 553 2,350 1,106 Total depreciation and amortization $ 4,801 $ 4,278 $ 9,854 $ 8,751

Other Assets (Tables)

Other Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Components of other assets were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Amounts associated with liability insurance program: Insurance collateral deposits $ 714 $ 714 Excess loss fund 617 617 Accumulated interest income 469 449 Other amounts: State collateral deposits 36 31 Materials and supplies 509 488 Debt issuance costs 324 — Other 261 84 Total other assets $ 2,930 $ 2,383

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Information concerning business activities	Financial information by reporting segment was as follows for the periods indicated (in thousands): Reporting Segments Crude Oil Marketing Transportation Pipeline and storage Other Total Three Months Ended June 30, 2021 Segment revenues (1) $ 463,092 $ 23,535 $ 651 $ — $ 487,278 Less: Intersegment revenues (1) — (38) (496) — (534) Revenues $ 463,092 $ 23,497 $ 155 $ — $ 486,744 Segment operating earnings (losses) (2) 8,370 1,482 (556) — 9,296 Depreciation and amortization 1,641 2,937 223 — 4,801 Property and equipment additions (3) 492 2,761 179 — 3,432 Three Months Ended June 30, 2020 Segment revenues $ 140,141 $ 12,145 $ — $ — $ 152,286 Less: Intersegment revenues — — — — — Revenues $ 140,141 $ 12,145 $ — $ — $ 152,286 Segment operating earnings (losses) (2) 6,830 (1,164) — — 5,666 Depreciation and amortization 1,857 2,421 — — 4,278 Property and equipment additions (3) (4) 18 323 — 327 668 Six Months Ended June 30, 2021 Segment revenues (1) $ 767,115 $ 44,803 $ 1,070 $ — $ 812,988 Less: Intersegment revenues (1) — (71) (682) — (753) Revenues $ 767,115 $ 44,732 $ 388 $ — $ 812,235 Segment operating earnings (losses) (2) 15,388 2,256 (1,121) — 16,523 Depreciation and amortization 3,439 5,938 477 — 9,854 Property and equipment additions (3) (4) 702 2,703 189 8 3,602 Six Months Ended June 30, 2020 Segment revenues $ 477,362 $ 28,401 $ — $ — $ 505,763 Less: Intersegment revenues — — — — — Revenues $ 477,362 $ 28,401 $ — $ — $ 505,763 Segment operating earnings (losses) (2) (10,821) (559) — — (11,380) Depreciation and amortization 3,864 4,887 — — 8,751 Property and equipment additions (3) (4) 2,050 364 — 466 2,880 _______________ (1) Segment revenues include intersegment amounts that are eliminated in operating costs and expenses in our unaudited condensed consolidated statements of operations. Intersegment activities are conducted at posted tariff rates where applicable, or otherwise at rates similar to those charged to third parties or rates that we believe approximate market at the time the agreement is executed. (2) Our crude oil marketing segment’s operating (losses) earnings included inventory liquidation gains of $3.7 million and $6.0 million for the three months ended June 30, 2021 and 2020, respectively. For the six months ended June 30, 2021 and 2020, our crude oil marketing segment’s operating (losses) earnings included inventory liquidation gains of $10.6 million and inventory valuation losses of $18.2 million, respectively. (3) Our segment property and equipment additions do not include assets acquired under finance leases during the three and six months ended June 30, 2021 and 2020. See Note 14 for further information. (4) During the three months ended June 30, 2020 and the six months ended June 30, 2021 and 2020, we had $0.3 million, $8.0 thousand and $0.5 million, respectively, of property and equipment additions for computer equipment and leasehold improvements at our corporate headquarters, which were not attributed or allocated to any of our reporting segments.
Reconciliation of segment earnings to earnings before income taxes	Segment operating earnings (losses) reflect revenues net of operating costs and depreciation and amortization expense and are reconciled to earnings (losses) before income taxes, as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Segment operating earnings (losses) $ 9,296 $ 5,666 $ 16,523 $ (11,380) General and administrative (2,961) (2,731) (6,337) (5,625) Operating earnings (losses) 6,335 2,935 10,186 (17,005) Interest and other income 62 144 196 509 Interest expense (204) (68) (424) (218) Earnings (losses) before income taxes $ 6,193 $ 3,011 $ 9,958 $ (16,714)
Identifiable assets by industry segment	Identifiable assets by business segment were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Reporting segment: Crude oil marketing $ 165,072 $ 128,441 Transportation 68,110 72,247 Pipeline and storage 24,253 24,541 Cash and other (1) 107,571 70,958 Total assets $ 365,006 $ 296,187 _______________ (1) Other identifiable assets are primarily corporate cash, corporate accounts receivable, properties and operating lease right-of-use assets not identified with any specific segment of our business.

Transactions with Affiliates (T

Transactions with Affiliates (Tables)	6 Months Ended
	Jun. 30, 2021
Related Party Transactions [Abstract]
Activities with affiliates	Activities with affiliates were as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Affiliate billings to us $ — $ 15 $ 12 $ 32 Billings to affiliates 5 1 6 2 Rentals paid to affiliate 143 122 317 244

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Other Liabilities Disclosure [Abstract]
Schedule of Other Current Liabilities	The components of other current liabilities were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Accrued purchase price for VEX acquisition $ — $ 10,000 Accrual for payroll, benefits and bonuses 6,354 6,575 Accrued automobile and workers’ compensation claims 4,345 3,171 Accrued medical claims 1,422 915 Accrued taxes 799 772 Other 636 910 Total other current liabilities $ 13,556 $ 22,343

Derivative Instruments and Fa_2

Derivative Instruments and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives reflected in the consolidated balance sheet	The estimated fair value of forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated balance sheets were as follows at the dates indicated (in thousands): Balance Sheet Location and Amount Current Other Current Other Assets Assets Liabilities Liabilities June 30, 2021 Asset derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation $ 1,255 $ — $ — $ — Liability derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation — — 1,221 — Less counterparty offsets — — — — As reported fair value contracts $ 1,255 $ — $ 1,221 $ — December 31, 2020 Asset derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation $ 61 $ — $ — $ — Liability derivatives: Fair value forward hydrocarbon commodity contracts at gross valuation — — 52 — Less counterparty offsets — — — — As reported fair value contracts $ 61 $ — $ 52 $ —
Derivatives reflected in the consolidated statement of operations	Forward month commodity contracts (derivatives) reflected in the accompanying unaudited condensed consolidated statements of operations were as follows for the periods indicated (in thousands): Gains (losses) Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Revenues – marketing $ 5 $ (7) $ 25 $ 12
Fair value assets and liabilities	The following tables set forth, by level with the Level 1, 2 and 3 fair value hierarchy, the carrying values of our financial assets and liabilities at the dates indicated (in thousands): Fair Value Measurements Using Quoted Prices in Active Significant Markets for Other Significant Identical Assets Observable Unobservable and Liabilities Inputs Inputs Counterparty (Level 1) (Level 2) (Level 3) Offsets Total June 30, 2021 Derivatives: Current assets $ — $ 1,255 $ — $ — $ 1,255 Current liabilities — (1,221) — — (1,221) Net value $ — $ 34 $ — $ — $ 34 December 31, 2020 Derivatives: Current assets $ — $ 61 $ — $ — $ 61 Current liabilities — (52) — — (52) Net value $ — $ 9 $ — $ — $ 9

Stock-Based Compensation Plan (

Stock-Based Compensation Plan (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Payment Arrangement	Compensation expense recognized in connection with equity-based awards was as follows for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Compensation expense $ 232 $ 170 $ 417 $ 304
Share-based Compensation, Activity	The following table presents restricted stock unit award activity for the periods indicated: Weighted- Average Grant Number of Date Fair Value Shares per Share (1) Restricted stock unit awards at January 1, 2021 27,490 $ 28.64 Granted (2) 26,369 $ 29.70 Vested (14,244) $ 30.20 Forfeited (764) $ 28.71 Restricted stock unit awards at June 30, 2021 38,851 $ 28.79 _______________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued. The following table presents performance share unit award activity for the periods indicated: Weighted- Average Grant Number of Date Fair Value Shares per Share (1) Performance share unit awards at January 1, 2021 16,241 $ 27.67 Granted (2) 12,205 $ 29.70 Vested (2,461) $ 43.00 Forfeited — $ — Performance share unit awards at June 30, 2021 25,985 $ 27.17 _______________ (1) Determined by dividing the aggregate grant date fair value of awards by the number of awards issued.

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2021
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental cash flows and non-cash transactions were as follows for the periods indicated (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for interest $ 424 $ 218 Cash paid for federal and state income taxes 258 182 Cash refund for NOL carryback under CARES Act 3,712 2,703 Non-cash transactions: Change in accounts payable related to property and equipment additions (1,238) (1,237) Property and equipment acquired under finance leases 2,083 1,656

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Lease, Cost	The following table provides the components of lease expense for the periods indicated (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020 Finance lease cost: Amortization of ROU assets $ 1,210 $ 553 $ 2,350 $ 1,106 Interest on lease liabilities 110 68 220 142 Operating lease cost 623 678 1,247 1,357 Short-term lease cost 3,448 2,169 6,698 4,671 Variable lease cost 1 — 2 — Total lease expense $ 5,392 $ 3,468 $ 10,517 $ 7,276 The following table provides supplemental cash flow and other information related to leases for the periods indicated (in thousands): Six Months Ended June 30, 2021 2020 Cash paid for amounts included in measurement of lease liabilities: Operating cash flows from operating leases (1) $ 1,244 $ 1,354 Operating cash flows from finance leases 187 201 Financing cash flows from finance leases 2,123 1,070 ROU assets obtained in exchange for new lease liabilities: Finance leases 2,083 1,656 Operating leases 285 162 ______________ (1) Amounts are included in Other operating activities on the unaudited condensed consolidated statements of cash flows. The following table provides the lease terms and discount rates for the periods indicated: Six Months Ended June 30, 2021 2020 Weighted-average remaining lease term (years): Finance leases 3.92 4.40 Operating leases 4.13 4.38 Weighted-average discount rate: Finance leases 2.7% 4.2% Operating leases 4.2% 5.0%
Assets and Liabilities, Lessee	The following table provides supplemental balance sheet information related to leases at the dates indicated (in thousands): June 30, December 31, 2021 2020 Assets Finance lease ROU assets (1) $ 14,982 $ 15,251 Operating lease ROU assets 7,249 8,051 Liabilities Current Finance lease liabilities 4,333 4,112 Operating lease liabilities 2,184 2,050 Noncurrent Finance lease liabilities 11,246 11,507 Operating lease liabilities 5,067 6,000 ______________ (1) Amounts are included in Property and equipment, net on the unaudited condensed consolidated balance sheets.
Lessee, Operating Lease, Liability, Maturity	The following table provides maturities of undiscounted lease liabilities at June 30, 2021 (in thousands): Finance Operating Lease Lease Remainder of 2021 $ 2,437 $ 1,231 2022 3,941 2,142 2023 3,143 1,839 2024 2,348 1,702 2025 3,771 222 Thereafter 801 674 Total lease payments 16,441 7,810 Less: Interest (862) (559) Present value of lease liabilities 15,579 7,251 Less: Current portion of lease obligation (4,333) (2,184) Total long-term lease obligation $ 11,246 $ 5,067 The following table provides maturities of undiscounted lease liabilities at December 31, 2020 (in thousands): Finance Operating Lease Lease 2021 $ 4,496 $ 2,343 2022 3,562 2,002 2023 2,764 1,821 2024 1,969 1,700 2025 2,992 222 Thereafter 802 675 Total lease payments 16,585 8,763 Less: Interest (966) (713) Present value of lease liabilities 15,619 8,050 Less: Current portion of lease obligation (4,112) (2,050) Total long-term lease obligation $ 11,507 $ 6,000
Finance Lease, Liability, Maturity	The following table provides maturities of undiscounted lease liabilities at June 30, 2021 (in thousands): Finance Operating Lease Lease Remainder of 2021 $ 2,437 $ 1,231 2022 3,941 2,142 2023 3,143 1,839 2024 2,348 1,702 2025 3,771 222 Thereafter 801 674 Total lease payments 16,441 7,810 Less: Interest (862) (559) Present value of lease liabilities 15,579 7,251 Less: Current portion of lease obligation (4,333) (2,184) Total long-term lease obligation $ 11,246 $ 5,067 The following table provides maturities of undiscounted lease liabilities at December 31, 2020 (in thousands): Finance Operating Lease Lease 2021 $ 4,496 $ 2,343 2022 3,562 2,002 2023 2,764 1,821 2024 1,969 1,700 2025 2,992 222 Thereafter 802 675 Total lease payments 16,585 8,763 Less: Interest (966) (713) Present value of lease liabilities 15,619 8,050 Less: Current portion of lease obligation (4,112) (2,050) Total long-term lease obligation $ 11,507 $ 6,000

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of expenses and losses incurred but not reported and accrued workers' compensation	Our accruals for automobile, workers’ compensation and medical claims were as follows at the dates indicated (in thousands): June 30, December 31, 2021 2020 Pre-funded premiums for losses incurred but not reported $ 57 $ 55 Accrued automobile and workers’ compensation claims 4,345 3,171 Accrued medical claims 1,422 915

Organization and Basis of Pre_2

Organization and Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2021segmentstate
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of states in which entity operates | state	48
Number of operating segments	3
Number of reportable segments	3

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Reconciliation of Cash and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 88,668	$ 39,293
Restricted cash	7,033	12,772
Total cash, cash equivalents and restricted cash shown in the unaudited condensed consolidated statements of cash flows	95,701	52,065	$ 78,197	$ 122,255
Letter of Credit
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	7,033	7,628
Captive Insurance Subsidiary
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	0	$ 5,144
Initial Capitalization
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,500

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Common Shares Outstanding (Details) - shares	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	4,251,015	4,243,716
Vesting of restricted stock unit awards (in shares)	5,700	8,544
Shares withheld to cover taxes upon vesting of restricted stock unit awards (in shares)	(1,798)	(1,245)
Ending balance (in shares)	4,257,378	4,251,015
Performance Unit Awards
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of performance share unit awards (in shares)	2,461

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Earnings (Losses) per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Basic earnings per share:
Net earnings (losses)	$ 4,709	$ 2,808	$ 3,503	$ (11,427)	$ 7,517	$ (7,924)
Basic weighted average number of shares outstanding (in shares)	4,254		4,239		4,250	4,237
Basic earnings (losses) per share (in dollars per share)	$ 1.11		$ 0.83		$ 1.77	$ (1.87)
Diluted weighted average number of shares outstanding:
Common shares (in shares)	4,254		4,239		4,250	4,237
Total diluted shares (in shares)	4,273		4,253		4,272	4,237
Diluted earnings (losses) per share (in dollars per share)	$ 1.10		$ 0.82		$ 1.76	$ (1.87)
Restricted stock units awards
Diluted weighted average number of shares outstanding:
Unit awards (in shares)	13		12		15	0
Performance share unit awards
Diluted weighted average number of shares outstanding:
Unit awards (in shares)	6		2		7	0

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Fair Value (Details)	Jun. 30, 2021contract
Hedging accounting
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of contracts held	0

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Income Taxes, Inventory and Property and Equipment (Details) - USD ($) $ in Millions	1 Months Ended		6 Months Ended
	Apr. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Abstract]
Income tax cash refunds	$ 3.7	$ 2.7
CARES Act, cash benefits for the fiscal year 2020			$ 6.8
Inventory write-down				$ 24.2
Minimum
Property, Plant and Equipment [Abstract]
Property and equipment, useful life			2 years
Maximum
Property, Plant and Equipment [Abstract]
Property and equipment, useful life			39 years

Revenue Recognition - Revenue D

Revenue Recognition - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 476,472	$ 143,674	$ 795,415	$ 479,647
Total revenues	486,744	152,286	812,235	505,763
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,652	12,145	45,120	28,401
Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	476,472	143,674	795,415	479,647
Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	10,272	8,612	16,820	26,116
Crude Oil Marketing
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Total revenues	463,092	140,141	767,115	477,362
Crude Oil Marketing | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Crude Oil Marketing | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Crude Oil Marketing | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	452,820	131,529	750,295	451,246
Crude Oil Marketing | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	10,272	8,612	16,820	26,116
Transportation
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Total revenues	23,497	12,145	44,732	28,401
Transportation | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Transportation | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Transportation | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	23,497	12,145	44,732	28,401
Transportation | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Pipeline and storage
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Total revenues	155	0	388	0
Pipeline and storage | Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	0	0	0
Pipeline and storage | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Pipeline and storage | Revenues from contracts with customers
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	155	0	388	0
Pipeline and storage | Other
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 0	$ 0	$ 0	$ 0

Revenue Recognition - Other Rev

Revenue Recognition - Other Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue gross-up	$ 189,512	$ 60,044	$ 324,378	$ 217,483

Prepayments and Other Current_3

Prepayments and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Insurance premiums	$ 847	$ 690
Vendor prepayment	193	1,085
Rents, licenses and other	1,082	1,189
Total prepayments and other current assets	$ 2,122	$ 2,964

Property and Equipment (Details

Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 194,083		$ 194,083		$ 189,102
Less accumulated depreciation and amortization	(103,506)		(103,506)		(94,968)
Property and equipment, net	90,577		90,577		94,134
Total depreciation and amortization	4,801	$ 4,278	9,854	$ 8,751
Assets not held under finance leases
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	3,591	3,725	7,504	7,645
Assets held under finance leases
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	1,210	$ 553	$ 2,350	$ 1,106
Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			2 years
Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			39 years
Tractors and trailers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	100,899		$ 100,899		101,813
Tractors and trailers | Assets held under finance leases
Property, Plant and Equipment [Line Items]
Less accumulated depreciation and amortization	(7,400)		$ (7,400)		(5,000)
Tractors and trailers | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			5 years
Tractors and trailers | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			6 years
Field equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	22,779		$ 22,779		22,139
Field equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			2 years
Field equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			5 years
Finance lease ROU assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	22,349		$ 22,349		20,266
Finance lease ROU assets | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			3 years
Finance lease ROU assets | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			6 years
Pipeline and related facilities
Property, Plant and Equipment [Line Items]
Property and equipment, gross	19,946		$ 19,946		21,265
Pipeline and related facilities | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			20 years
Pipeline and related facilities | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			25 years
Linefill and base gas
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,333		$ 3,333		3,333
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	16,044		$ 16,044		14,977
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			5 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			39 years
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,951		$ 1,951		1,893
Office equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			2 years
Office equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life			5 years
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,008		$ 2,008		1,790
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,774		$ 4,774		$ 1,626

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Insurance collateral deposits	$ 714	$ 714
Excess loss fund	617	617
Accumulated interest income	469	449
State collateral deposits	36	31
Materials and supplies	509	488
Debt issuance costs	324	0
Other	261	84
Total other assets	$ 2,930	$ 2,383

Segment Reporting - Information

Segment Reporting - Information Concerning Business Activities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)segment	Jun. 30, 2020USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Number of operating segments | segment			3
Segment Reporting Information [Line Items]
Revenues	$ 486,744	$ 152,286	$ 812,235	$ 505,763
Segment operating earnings (losses)	6,335	2,935	10,186	(17,005)
Depreciation and amortization	4,801	4,278	9,854	8,751
Property and equipment additions	3,432	668	3,602	2,880
Leasehold Improvements
Segment Reporting Information [Line Items]
Property and equipment additions		300	8	500
Crude Oil Marketing
Segment Reporting Information [Line Items]
Revenues	463,092	140,141	767,115	477,362
Depreciation and amortization	1,641	1,857	3,439	3,864
Property and equipment additions	492	18	702	2,050
Inventory liquidation (gains) losses	(3,700)	(6,000)	(10,600)	18,200
Transportation
Segment Reporting Information [Line Items]
Revenues	23,497	12,145	44,732	28,401
Depreciation and amortization	2,937	2,421	5,938	4,887
Property and equipment additions	2,761	323	2,703	364
Pipeline and storage
Segment Reporting Information [Line Items]
Revenues	155	0	388	0
Depreciation and amortization	223	0	477	0
Property and equipment additions	179	0	189	0
Operating segments
Segment Reporting Information [Line Items]
Revenues	487,278	152,286	812,988	505,763
Segment operating earnings (losses)	9,296	5,666	16,523	(11,380)
Operating segments | Crude Oil Marketing
Segment Reporting Information [Line Items]
Revenues	463,092	140,141	767,115	477,362
Segment operating earnings (losses)	8,370	6,830	15,388	(10,821)
Operating segments | Transportation
Segment Reporting Information [Line Items]
Revenues	23,535	12,145	44,803	28,401
Segment operating earnings (losses)	1,482	(1,164)	2,256	(559)
Operating segments | Pipeline and storage
Segment Reporting Information [Line Items]
Revenues	651	0	1,070	0
Segment operating earnings (losses)	(556)	0	(1,121)	0
Intersegment
Segment Reporting Information [Line Items]
Revenues	(534)	0	(753)	0
Intersegment | Crude Oil Marketing
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Intersegment | Transportation
Segment Reporting Information [Line Items]
Revenues	(38)	0	(71)	0
Intersegment | Pipeline and storage
Segment Reporting Information [Line Items]
Revenues	(496)	0	(682)	0
Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Segment operating earnings (losses)	0	0	0	0
Depreciation and amortization	0	0	0	0
Property and equipment additions	$ 0	$ 327	$ 8	$ 466

Segment Reporting - Reconciliat

Segment Reporting - Reconciliation of Segment Earnings to Earnings Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Operating earnings (losses)	$ 6,335	$ 2,935	$ 10,186	$ (17,005)
General and administrative	(2,961)	(2,731)	(6,337)	(5,625)
Interest and other income	62	144	196	509
Interest expense	(204)	(68)	(424)	(218)
Earnings (Losses) before income taxes	6,193	3,011	9,958	(16,714)
Operating segments
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Operating earnings (losses)	9,296	5,666	16,523	(11,380)
General and administrative
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Operating earnings (losses)	0	0	0	0
General and administrative	(2,961)	(2,731)	(6,337)	(5,625)
Segment reconciling items
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Interest and other income	62	144	196	509
Interest expense	$ (204)	$ (68)	$ (424)	$ (218)

Segment Reporting - Identifiabl

Segment Reporting - Identifiable Assets by Industry Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Segment Reconciliation [Abstract]
Total assets	$ 365,006	$ 296,187
Operating segments
Segment Reconciliation [Abstract]
Total assets	365,006	296,187
Operating segments | Crude Oil Marketing
Segment Reconciliation [Abstract]
Total assets	165,072	128,441
Operating segments | Transportation
Segment Reconciliation [Abstract]
Total assets	68,110	72,247
Operating segments | Pipeline and storage
Segment Reconciliation [Abstract]
Total assets	24,253	24,541
Cash and other
Segment Reconciliation [Abstract]
Total assets	$ 107,571	$ 70,958

Transactions with Affiliates (D

Transactions with Affiliates (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)truck	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)
Transactions with Affiliates [Abstract]
Billings to affiliates	$ 476,472	$ 143,674	$ 795,415	$ 479,647
Asset acquisition			0	9,137
Affiliated entities
Transactions with Affiliates [Abstract]
Affiliate billings to us	0	15	12	32
Billings to affiliates	5	1	6	2
Rentals paid to affiliate	$ 143	$ 122	$ 317	$ 244
Number of pickup tracks purchased | truck	8
Asset acquisition	$ 400

Other Current Liabilities (Deta

Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued purchase price for VEX acquisition	$ 0	$ 10,000
Accrual for payroll, benefits and bonuses	6,354	6,575
Accrued automobile and workers’ compensation claims	4,345	3,171
Accrued medical claims	1,422	915
Accrued taxes	799	772
Other	636	910
Total other current liabilities	$ 13,556	$ 22,343

Credit Agreement (Details)

Credit Agreement (Details) - USD ($)	May 04, 2021	Jun. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Borrowings outstanding		$ 8,000,000	$ 0
Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 40,000,000
Borrowings outstanding		$ 8,000,000
Weighted average interest rate		2.75%
Letters of credit		$ 9,200,000
Commitment fee	0.25%	1.75%
Applicable margin	1.75%
Leverage ratio		3
Current ratio		1.25
Coverage ratio		3
Goodwill and intangible assets requirement		$ 100,000,000
Debt issuance costs		$ 300,000
Revolving Credit Facility | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility | LIBOR | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.75%

Derivative Instruments and Fa_3

Derivative Instruments and Fair Value Measurements - Narrative (Details) - Commodity Contract	3 Months Ended	6 Months Ended
	Mar. 31, 2021barrel_of_oil_per_day	Jun. 30, 2021barrel_of_oil_per_daycontract	Dec. 31, 2020contract
Derivative Instruments, Gain (Loss) [Line Items]
Number of contracts held | contract		7	6
Number of contracts held, fair value | contract			3
July 2021 through December 2021
Derivative Instruments, Gain (Loss) [Line Items]
Production | barrel_of_oil_per_day		740
January 2021 through December 2021
Derivative Instruments, Gain (Loss) [Line Items]
Production | barrel_of_oil_per_day	192

Derivative Instruments and Fa_4

Derivative Instruments and Fair Value Measurements - Use of Derivative Instruments (Details) - Commodity Contract - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 1,255	$ 61
Liability derivatives	0	0
Less counterparty offsets	0	0
As reported fair value contracts	1,255	61
Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0
Liability derivatives	0	0
Less counterparty offsets	0	0
As reported fair value contracts	0	0
Current Liabilities
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0
Liability derivatives	1,221	52
Less counterparty offsets	0	0
As reported fair value contracts	1,221	52
Other Liabilities
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0
Liability derivatives	0	0
Less counterparty offsets	0	0
As reported fair value contracts	$ 0	$ 0

Derivative Instruments and Fa_5

Derivative Instruments and Fair Value Measurements - Gain (Loss) on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues – marketing | Not Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Gain (loss) on derivative	$ 5	$ (7)	$ 25	$ 12

Derivative Instruments and Fa_6

Derivative Instruments and Fair Value Measurements - Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives:
Current assets	$ 1,255	$ 61
Current assets, counterparty offsets	0	0
Current liabilities	(1,221)	(52)
Current liabilities, counterparty offsets	0	0
Net value	34	9
Net value, counterparty offsets	0	0
Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Derivatives:
Current assets	0	0
Current liabilities	0	0
Net value	0	0
Significant Other Observable Inputs (Level 2)
Derivatives:
Current assets	1,255	61
Current liabilities	(1,221)	(52)
Net value	34	9
Significant Unobservable Inputs (Level 3)
Derivatives:
Current assets	0	0
Current liabilities	0	0
Net value	$ 0	$ 0

Stock-Based Compensation Plan_2

Stock-Based Compensation Plan (Details) - The 2018 LTIP - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	May 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	38,525		38,525			150,000
Compensation expense	$ 232,000	$ 170,000	$ 417,000	$ 304,000
Accrued dividends	$ 55,600		$ 55,600		$ 50,800
Restricted stock units awards
Number of Shares
Unit awards, beginning balance (in shares)			27,490
Granted (in shares)			26,369
Vested (in shares)			(14,244)
Forfeited (in shares)			(764)
Unit awards, ending balance (in shares)	38,851		38,851
Weighted Average Grant Date Fair Value per Share
Unit awards, beginning balance (in dollars per share)			$ 28.64
Granted (in dollars per share)			29.70
Vested (in dollars per share)			30.20
Forfeited (in dollars per share)			28.71
Unit awards, ending balance (in dollars per share)	$ 28.79		$ 28.79
Aggregate grant date fair value awards issues			$ 800,000
Unrecognized compensation cost	$ 700,000		$ 700,000
Period for recognition for remaining compensation cost			1 year 6 months
Restricted stock units awards | Minimum
Weighted Average Grant Date Fair Value per Share
Granted (in dollars per share)			$ 29.70
Restricted stock units awards | Maximum
Weighted Average Grant Date Fair Value per Share
Granted (in dollars per share)			$ 30
Performance share unit awards
Number of Shares
Unit awards, beginning balance (in shares)			16,241
Granted (in shares)			12,205
Vested (in shares)			(2,461)
Forfeited (in shares)			0
Unit awards, ending balance (in shares)	25,985		25,985
Weighted Average Grant Date Fair Value per Share
Unit awards, beginning balance (in dollars per share)			$ 27.67
Granted (in dollars per share)			29.70
Vested (in dollars per share)			43
Forfeited (in dollars per share)			0
Unit awards, ending balance (in dollars per share)	$ 27.17		$ 27.17
Aggregate grant date fair value awards issues			$ 400,000
Performance factor			100000.00%
Unrecognized compensation cost	$ 500,000		$ 500,000
Period for recognition for remaining compensation cost			2 years 6 months

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 424	$ 218
Cash paid for federal and state income taxes	258	182
Cash refund for NOL carryback under CARES Act	3,712	2,703
Non-cash transactions:
Change in accounts payable related to property and equipment additions	(1,238)	(1,237)
Property and equipment acquired under finance leases	$ 2,083	$ 1,656

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Lease, Cost [Abstract]
Amortization of ROU assets	$ 1,210	$ 553	$ 2,350	$ 1,106
Interest on lease liabilities	110	68	220	142
Operating lease cost	623	678	1,247	1,357
Short-term lease cost	3,448	2,169	6,698	4,671
Variable lease cost	1	0	2	0
Total lease expense	$ 5,392	$ 3,468	10,517	7,276
Operating cash flows from operating leases			1,244	1,354
Operating cash flows from finance leases			187	201
Financing cash flows from finance leases			2,123	1,070
ROU assets obtained in exchange for new lease liabilities, Finance leases			2,083	1,656
ROU assets obtained in exchange for new lease liabilities, Operating leases			$ 285	$ 162
Weighted-average remaining lease term (years), Finance leases	3 years 11 months 1 day	4 years 4 months 24 days	3 years 11 months 1 day	4 years 4 months 24 days
Weighted-average remaining lease term (years), Operating leases	4 years 1 month 17 days	4 years 4 months 17 days	4 years 1 month 17 days	4 years 4 months 17 days
Weighted-average discount rate, Finance leases	2.70%	4.20%	2.70%	4.20%
Weighted-average discount rate, Operating leases	4.20%	5.00%	4.20%	5.00%
Assets and Liabilities, Lessee [Abstract]
Finance lease ROU assets	$ 14,982		$ 14,982		$ 15,251
Operating lease ROU assets	7,249		7,249		8,051
Finance lease liabilities, Current	4,333		4,333		4,112
Operating lease liabilities, Current	2,184		2,184		2,050
Finance lease liabilities, Noncurrent	11,246		11,246		11,507
Operating lease liabilities, Noncurrent	5,067		5,067		6,000
Finance Lease Liabilities, Payments
Remainder of 2021	2,437		2,437
2022	3,941		3,941		4,496
2023	3,143		3,143		3,562
2024	2,348		2,348		2,764
2025	3,771		3,771		1,969
Thereafter	801		801
2025					2,992
Thereafter					802
Total lease payments	16,441		16,441		16,585
Less: Interest	(862)		(862)		(966)
Present value of lease liabilities	15,579		15,579		15,619
Less: Current portion of lease obligation	(4,333)		(4,333)		(4,112)
Finance lease obligations	11,246		11,246		11,507
Operating Lease Liabilities, Payments Due
Remainder of 2020	1,231		1,231
2022	2,142		2,142		2,343
2023	1,839		1,839		2,002
2024	1,702		1,702		1,821
2025	222		222		1,700
Thereafter	674		674
2024					222
Thereafter					675
Total lease payments	7,810		7,810		8,763
Less: Interest	(559)		(559)		(713)
Present value of lease liabilities	7,251		7,251		8,050
Less: Current portion of lease obligation	(2,184)		(2,184)		(2,050)
Total long-term lease obligation	$ 5,067		$ 5,067		$ 6,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021USD ($)
Commitments and Contingencies Disclosure [Abstract]
Self-insured retention	$ 1,000,000
Percent of risk loss shared	20.00%
Amount of risk loss shared	$ 1,000,000
Benchmark for risk of loss amount	5,000,000
Umbrellas insurance coverage	1,400,000
Aggregate medical claims for umbrella insurance coverage per calendar year	$ 7,500,000

Commitments and Contingencies_2

Commitments and Contingencies - Pre-funded Insurance (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Pre-funded premiums for losses incurred but not reported	$ 57	$ 55
Accrued automobile and workers’ compensation claims	4,345	3,171
Accrued medical claims	$ 1,422	$ 915