Development Costs
Development costs deducted are based on the current level of development expenditures, budgeted future development costs and the cumulative actual costs under (over) previous deductions. These development costs increased 763% for the third quarter and 613% for the nine-month period, primarily due to the increase in the development budget for the active drilling of four horizontal wells in Major County, Oklahoma, with completion currently scheduled for early 2019. The monthly development cost deduction will be reevaluated by XTO Energy and revised as necessary. For further information on development costs, see Note 2 to Condensed Financial Statements.
Overhead
Overhead decreased 1% for the third quarter and increased 1% for the nine-month period. Overhead is charged by XTO Energy for administrative expenses incurred to support operations of the underlying properties. Overhead fluctuates based on changes in the active well count and drilling activity on the underlying properties, as well as an annual cost level adjustment based on an industry index.
Excess Costs
If monthly costs exceed revenues for any conveyance, these excess costs must be recovered, with accrued interest, from future net proceeds of that conveyance and cannot reduce net profits income from another conveyance. Underlying cumulative excess costs for the Kansas, Oklahoma and Wyoming conveyances remaining as of September 30, 2018 totaled $11.9 million ($9.5 million NPI), including accrued interest of $0.2 million ($0.1 million NPI). For further information on excess costs, see Note 5 to Condensed Financial Statements.
Marketing
XTO Energy has advised the Trustee that, effective April 1, 2017, Cross Timbers Energy Services, Inc. (“CTES”), a wholly owned marketing subsidiary of XTO Energy, has assigned all gas sales contracts for production from the underlying properties to XTO Energy. XTO Energy sells gas directly to third parties. XTO Energy has advised the Trustee that there are no changes to the terms of the contracts related to the assignment and no impact on Trust distributions.
For further information regarding natural gas sales from the underlying properties to affiliates of XTO Energy, see Significant Properties, under Item 2, Properties and Note 7 to the Financial Statements under Item 8, Financial Statements and Supplementary Data of the Trust’s Annual Report on Form10-K for the year ended December 31, 2017.
Contingencies
For information on contingencies, see Note 4 to Condensed Financial Statements.
Forward-Looking Statements
Statements in this report relating to future plans, predictions, events, or regulatory or court decisions are forward-looking statements. All statements other than statements of historical fact included in this Form10-Q, including, without limitation, statements regarding the net profits interests, underlying properties, development activities, annual and monthly development, production and other costs and expenses, monthly development cost deductions, oil and gas prices and differentials to NYMEX prices, supply levels, drilling, workover andre-stimulation plans, the outcome of litigation
18