REVENUE RECOGNITION	3 Months Ended
Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION Our major sources of revenue are oil, natural gas and NGL production from our oil and gas properties. We sell crude oil to purchasers typically through monthly contracts, with the sale taking place at the wellhead. Natural gas is sold to purchasers through monthly contracts, with the sale taking place at the wellhead or the tailgate of an onshore gas processing plant (after the removal of NGLs). We actively market our crude oil and natural gas to purchasers and the volumes are metered and therefore readily determinable. Sales prices for purchased oil and natural gas volumes are negotiated with purchasers and are based on certain published indices. Since the oil and natural gas contracts are month-to-month, there is no dedication of production to any one purchaser. We sell the NGLs entrained in the natural gas that we produce. The arrangements to sell these products first requires natural gas to be processed at an onshore gas processing plant. Once the liquids are removed and fractionated (broken into the individual hydrocarbon chains for sale), the products are sold by the processing plant. The residue gas left over is sold to natural gas purchasers as natural gas sales (referenced above). The contracts for NGL sales are with the processing plant. The prices received for the NGLs are not negotiated by the Company, but rather, are based on what the processing plant can receive from a third party purchaser. The gas processing and subsequent sales of NGLs are subject to contracts with longer terms and dedications of lease production from the Company’s leases offshore. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” to clarify the principles for recognizing revenue and to develop a common revenue standard and disclosure requirements. See Note 1 – Financial Statement Presentation (Recently Adopted Accounting Standards). We adopted ASU 2014-09 on January 1, 2018 using the modified retrospective approach, with the cumulative effect of initially applying the new standard as an adjustment to accumulated deficit on the date of initial application. We applied the standard to contracts in place during 2017 and to new contracts entered into after January 1, 2018. The adoption of the standard did not have a material effect on our financial position, results of operations or cash flows. We have historically recognized oil, natural gas and NGL production revenue under the entitlements method of accounting. Under this method, revenue was deferred for deliveries in excess of our net revenue interest, while revenue was accrued for undelivered or underdelivered volumes (production imbalances). Production imbalances were generally recorded at the estimated sales price in effect at the time of production. ASU 2014-09 effectively eliminated the entitlements method of accounting, requiring us instead to recognize production revenue for the quantities and values of oil, natural gas and NGLs delivered or received. Our aggregate imbalance positions at December 31, 2017 were immaterial and required only a $0.7 million cumulative effect adjustment (all of which related to oil production) to the January 1, 2018 opening balance of our accumulated deficit upon adoption of ASU 2014-09. Sales of oil, natural gas and NGLs are recognized when the product is delivered and title transfers to the purchaser. Payment is generally received one to three months after the sale has occurred. To the extent actual quantities and values of oil, natural gas and NGL production for properties are not available for a given reporting period because of timing or information not received from the purchasers, the expected sales volumes and price are estimated and the result is recorded as purchaser accounts receivable (included in Accounts Receivable) in our balance sheet and as Oil, Natural Gas and NGL production revenue in our statement of operations. At March 31, 2018 (Successor), we recorded a purchaser accounts receivable of $31.2 million, consisting of $25.5 million of oil production revenue, $3.5 million of natural gas production revenue and $2.2 million of NGL production revenue. At December 31, 2017 (Successor), we recorded a purchaser accounts receivable of $32.8 million, consisting of $26.7 million of oil production revenue, $3.9 million of natural gas production revenue and $2.2 million of NGL production revenue. Revenue proceeds relating to third-party royalty owners not remitted by the end of a reporting period are recorded as Undistributed Oil and Gas Proceeds in our balance sheet.

REVENUE RECOGNITION

Our major sources of revenue are oil, natural gas and NGL production from our oil and gas properties. We sell crude oil to purchasers typically through monthly contracts, with the sale taking place at the wellhead. Natural gas is sold to purchasers through monthly contracts, with the sale taking place at the wellhead or the tailgate of an onshore gas processing plant (after the removal of NGLs). We actively market our crude oil and natural gas to purchasers and the volumes are metered and therefore readily determinable. Sales prices for purchased oil and natural gas volumes are negotiated with purchasers and are based on certain published indices. Since the oil and natural gas contracts are month-to-month, there is no dedication of production to any one purchaser. We sell the NGLs entrained in the natural gas that we produce. The arrangements to sell these products first requires natural gas to be processed at an onshore gas processing plant. Once the liquids are removed and fractionated (broken into the individual hydrocarbon chains for sale), the products are sold by the processing plant. The residue gas left over is sold to natural gas purchasers as natural gas sales (referenced above). The contracts for NGL sales are with the processing plant. The prices received for the NGLs are not negotiated by the Company, but rather, are based on what the processing plant can receive from a third party purchaser. The gas processing and subsequent sales of NGLs are subject to contracts with longer terms and dedications of lease production from the Company’s leases offshore.

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” to clarify the principles for recognizing revenue and to develop a common revenue standard and disclosure requirements. See Note 1 – Financial Statement Presentation (Recently Adopted Accounting Standards). We adopted ASU 2014-09 on January 1, 2018 using the modified retrospective approach, with the cumulative effect of initially applying the new standard as an adjustment to accumulated deficit on the date of initial application. We applied the standard to contracts in place during 2017 and to new contracts entered into after January 1, 2018. The adoption of the standard did not have a material effect on our financial position, results of operations or cash flows.

We have historically recognized oil, natural gas and NGL production revenue under the entitlements method of accounting. Under this method, revenue was deferred for deliveries in excess of our net revenue interest, while revenue was accrued for undelivered or underdelivered volumes (production imbalances). Production imbalances were generally recorded at the estimated sales price in effect at the time of production. ASU 2014-09 effectively eliminated the entitlements method of accounting, requiring us instead to recognize production revenue for the quantities and values of oil, natural gas and NGLs delivered or received. Our aggregate imbalance positions at December 31, 2017 were immaterial and required only a $0.7 million cumulative effect adjustment (all of which related to oil production) to the January 1, 2018 opening balance of our accumulated deficit upon adoption of ASU 2014-09.

Sales of oil, natural gas and NGLs are recognized when the product is delivered and title transfers to the purchaser. Payment is generally received one to three months after the sale has occurred. To the extent actual quantities and values of oil, natural gas and NGL production for properties are not available for a given reporting period because of timing or information not received from the purchasers, the expected sales volumes and price are estimated and the result is recorded as purchaser accounts receivable (included in Accounts Receivable) in our balance sheet and as Oil, Natural Gas and NGL production revenue in our statement of operations. At March 31, 2018 (Successor), we recorded a purchaser accounts receivable of $31.2 million, consisting of $25.5 million of oil production revenue, $3.5 million of natural gas production revenue and $2.2 million of NGL production revenue. At December 31, 2017 (Successor), we recorded a purchaser accounts receivable of $32.8 million, consisting of $26.7 million of oil production revenue, $3.9 million of natural gas production revenue and $2.2 million of NGL production revenue. Revenue proceeds relating to third-party royalty owners not remitted by the end of a reporting period are recorded as Undistributed Oil and Gas Proceeds in our balance sheet.