0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Business Overview and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - NATURAL GAS PROPERTIES link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - STOCK BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - INCOME PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - SEGMENT REPORTING link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - ASSET RETIREMENT OBLIGATION link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Business Overview and Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Business Overview and Basis of Presentation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - NATURAL GAS PROPERTIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - STOCK BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - INCOME PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - SEGMENT REPORTING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - ASSET RETIREMENT OBLIGATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Business Overview and Basis of Presentation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Business Overview and Basis of Presentation - Schedule of Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - NATURAL GAS PROPERTIES - Schedule of Conventional Natural Gas Properties (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - NATURAL GAS PROPERTIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - NATURAL GAS PROPERTIES - Schedule of Renewable Natural Gas Properties (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - STOCK BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - STOCK BASED COMPENSATION - Schedule of Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - STOCK BASED COMPENSATION - Schedule of Performance Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - INCOME PER SHARE - Schedule of Computation of Net Income (Loss) Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - INCOME PER SHARE -Schedule of Computation of Diluted Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - INCOME PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - SEGMENT REPORTING - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - SEGMENT REPORTING - Schedule of Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - ASSET RETIREMENT OBLIGATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - ASSET RETIREMENT OBLIGATION - Schedule of Asset Retirement Obligation (Details) link:presentationLink link:calculationLink link:definitionLink