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COPAS Overhead Adjustment Factors
To download an interactive Excel spreadsheet rate calculator, please click here COPAS Overhead Adjustment Factors and Overhead Rate Calculator
To view a chart of current and cumulative escalation factors, please click here Cumulative COPAS Escalation Percentages as of April 1, 2015
COPAS Accounting Procedures provide for an annual adjustment of the fixed rate overhead for drilling and producing wells. The base overhead rates to which such adjustments apply are contained in the Accounting Procedure attached to each individual Joint Operating Agreement, and are a matter of agreement among the parties thereto. COPAS does not publish or recommend any specific overhead rates or overhead surveys, as the rates are derived through negotiation among the parties to an agreement. For guidelines in the establishment of an appropriate overhead rate, see AG-23, Overhead Negotiation and Calculation, which is available from our Online Store & Publications.
After March 2003, the Crude Petroleum and Gas Production Workers index is no longer available for use in the annual calculation of overhead adjustment called for in the various COPAS model forms, which impacts the adjustments scheduled to occur in and after April 2004. A blending of the Oil and Gas Extraction Index with the Professional and Technical Services Index has been shown to approximate the data from the old Crude Petroleum and Natural Gas Workers Index. Accordingly, COPAS has calculated the percentage change in the simple average of the Oil and Gas Extraction Index and the Professional and Technical Services Index, commencing in April 2004. See Model Form Interpretation 50 (MFI-50), Overhead Adjustment Index for guidance regarding use of the replacement index in calculating the overhead adjustment, as well as other economic factors, such as the loading and unloading rates. COPAS publishes this rate as a convenience to the industry. Model Form Interpretation 50 suggests that each company make its own determination as to whether or not it needs to amend its contracts to use this or any other alternate index.