Equity	12 Months Ended
Dec. 31, 2018
Equity [Abstract]
Equity	Equity As discussed in “Note 2-Voluntary Reorganization under Chapter 11 of the Bankruptcy Code,” on the Effective Date and pursuant to the terms of the Plan and the Confirmation Order, all of the Predecessor’s common stock and 6.875% Series B Cumulative Convertible Perpetual Preferred Stock was canceled with the former holders thereof not receiving any consideration in respect thereof. Accordingly, the following discussion relates solely to the Predecessor’s common stock and 6.875% Series B Cumulative Convertible Perpetual Preferred Stock prior to such cancellation. Common Stock During December 2017, the Company issued 2.0 million shares of common stock in connection with the acquisition of Austin Chalk acreage (see Note 3). Additionally, during December 2017, the Company issued approximately 2.2 million shares of common stock related to the extinguishment of a portion of the outstanding 2021 Notes (see Note 10). Convertible Preferred Stock The Company had 1,495,000 shares of 6.875% Series B Cumulative Convertible Perpetual Preferred Stock (the “Series B Preferred Stock”) outstanding as of December 31, 2018 and 2017, all of which were canceled on the Effective Date pursuant to the Plan. The following is a summary of certain terms of the Series B Preferred Stock: Dividends. The Series B Preferred Stock accumulated dividends at an annual rate of 6.875% for each share of Series B Preferred Stock. Dividends were cumulative from the date of first issuance and, to the extent payment of dividends was not prohibited by the Company’s debt agreements, assets were legally available to pay dividends and the Company’s board of directors or an authorized committee of the board declared a dividend payable, the Company paid dividends in cash, every quarter. In connection with an amendment to the Company's prior bank credit facility (which was replaced by the Old Loan Agreement (as defined below) in October 2016 and the Multidraw Term Loan Agreement in August 2018) prohibiting the Company from declaring or paying dividends on the Series B Preferred Stock, the Company suspended the quarterly cash dividend on the Series B Preferred Stock beginning with the dividend payment due on April 15, 2016. The Old Loan Agreement prohibited, and the Multidraw Term Loan Agreement also prohibited the Company from declaring and paying cash dividends on the Series B Preferred Stock. Under the terms of the Series B Preferred Stock, any unpaid dividends accumulated. As of December 31, 2018, the Company had deferred eleven quarterly dividend payments and had accrued a $14.6 million payable related to the eleven deferred quarterly dividends and the quarterly dividend that accrued through the bankruptcy filing date. The accrued dividend payable is included in liabilities subject to compromise on the consolidated balance sheet. Mandatory conversion. The Company could, at its option, cause shares of the Series B Preferred Stock to be automatically converted at the applicable conversion rate, but only if the closing sale price of the Company’s common stock for 20 trading days within a period of 30 consecutive trading days ending on the trading day immediately preceding the date the Company gave the conversion notice equaled or exceeded 130% of the conversion price in effect on each such trading day. Conversion rights. Each share of Series B Preferred Stock could be converted at any time, at the option of the holder, into 0.8608 shares of the Company’s common stock (which is based on an initial conversion price of approximately $58.08 per share of common stock, subject to further adjustment) plus cash in lieu of fractional shares, subject to the Company’s right to settle all or a portion of any such conversion in cash or shares of the Company’s common stock. If the Company elected to settle all or any portion of its conversion obligation in cash, the conversion value and the number of shares of the Company’s common stock it would have delivered upon conversion (if any) would be based upon a 20 trading day averaging period. Upon any conversion, the holder would not receive any cash payment representing accumulated and unpaid dividends on the Series B Preferred Stock, whether or not in arrears, except in limited circumstances. The conversion rate was equal to $50 divided by the conversion price at the time. The conversion price was subject to adjustment upon the occurrence of certain events.

Equity

As discussed in “Note 2-Voluntary Reorganization under Chapter 11 of the Bankruptcy Code,” on the Effective Date and pursuant to the terms of the Plan and the Confirmation Order, all of the Predecessor’s common stock and 6.875% Series B Cumulative Convertible Perpetual Preferred Stock was canceled with the former holders thereof not receiving any consideration in respect thereof. Accordingly, the following discussion relates solely to the Predecessor’s common stock and 6.875% Series B Cumulative Convertible Perpetual Preferred Stock prior to such cancellation.

Common Stock

During December 2017, the Company issued 2.0 million shares of common stock in connection with the acquisition of Austin Chalk acreage (see Note 3). Additionally, during December 2017, the Company issued approximately 2.2 million shares of common stock related to the extinguishment of a portion of the outstanding 2021 Notes (see Note 10).

Convertible Preferred Stock

The Company had 1,495,000 shares of 6.875% Series B Cumulative Convertible Perpetual Preferred Stock (the “Series B Preferred Stock”) outstanding as of December 31, 2018 and 2017, all of which were canceled on the Effective Date pursuant to the Plan.

The following is a summary of certain terms of the Series B Preferred Stock:

Dividends. The Series B Preferred Stock accumulated dividends at an annual rate of 6.875% for each share of Series B Preferred Stock. Dividends were cumulative from the date of first issuance and, to the extent payment of dividends was not prohibited by the Company’s debt agreements, assets were legally available to pay dividends and the Company’s board of directors or an authorized committee of the board declared a dividend payable, the Company paid dividends in cash, every quarter.

In connection with an amendment to the Company's prior bank credit facility (which was replaced by the Old Loan Agreement (as defined below) in October 2016 and the Multidraw Term Loan Agreement in August 2018) prohibiting the Company from declaring or paying dividends on the Series B Preferred Stock, the Company suspended the quarterly cash dividend on the Series B Preferred Stock beginning with the dividend payment due on April 15, 2016. The Old Loan Agreement prohibited, and the Multidraw Term Loan Agreement also prohibited the Company from declaring and paying cash dividends on the Series B Preferred Stock. Under the terms of the Series B Preferred Stock, any unpaid dividends accumulated. As of December 31, 2018, the Company had deferred eleven quarterly dividend payments and had accrued a $14.6 million payable related to the eleven deferred quarterly dividends and the quarterly dividend that accrued through the bankruptcy filing date. The accrued dividend payable is included in liabilities subject to compromise on the consolidated balance sheet.

Mandatory conversion. The Company could, at its option, cause shares of the Series B Preferred Stock to be automatically converted at the applicable conversion rate, but only if the closing sale price of the Company’s common stock for 20 trading days within a period of 30 consecutive trading days ending on the trading day immediately preceding the date the Company gave the conversion notice equaled or exceeded 130% of the conversion price in effect on each such trading day.

Conversion rights. Each share of Series B Preferred Stock could be converted at any time, at the option of the holder, into 0.8608 shares of the Company’s common stock (which is based on an initial conversion price of approximately $58.08 per share of common stock, subject to further adjustment) plus cash in lieu of fractional shares, subject to the Company’s right to settle all or a portion of any such conversion in cash or shares of the Company’s common stock. If the Company elected to settle all or any portion of its conversion obligation in cash, the conversion value and the number of shares of the Company’s common stock it would have delivered upon conversion (if any) would be based upon a 20 trading day averaging period.

Upon any conversion, the holder would not receive any cash payment representing accumulated and unpaid dividends on the Series B Preferred Stock, whether or not in arrears, except in limited circumstances. The conversion rate was equal to $50 divided by the conversion price at the time. The conversion price was subject to adjustment upon the occurrence of certain events.