0000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 0010 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0015 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0020 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 0030 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME link:presentationLink link:calculationLink link:definitionLink 0035 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0040 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0050 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY link:presentationLink link:calculationLink link:definitionLink 0055 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1010 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 1020 - Disclosure - LOSS PER COMMON SHARE link:presentationLink link:calculationLink link:definitionLink 1030 - Disclosure - SHARE-BASED PAYMENTS link:presentationLink link:calculationLink link:definitionLink 1040 - Disclosure - REAL ESTATE HELD FOR SALE link:presentationLink link:calculationLink link:definitionLink 1050 - Disclosure - INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 1060 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 1070 - Disclosure - RETIREMENT PLANS link:presentationLink link:calculationLink link:definitionLink 1080 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 1090 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 1100 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 1110 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 1120 - Disclosure - INFORMATION RELATING TO THE CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 1130 - Disclosure - SUBSEQUENT EVENT link:presentationLink link:calculationLink link:definitionLink 8000 - Disclosure - ACCOUNTS RECEIVABLE AND CONTRACT COSTS link:presentationLink link:calculationLink link:definitionLink 8010 - Disclosure - PROPERTY AND EQUIPMENT AND ASSET RETIREMENT OBLIGATION link:presentationLink link:calculationLink link:definitionLink 8020 - Disclosure - INCENTIVE COMPENSATION PLAN link:presentationLink link:calculationLink link:definitionLink 8030 - Disclosure - REDUCTION OF CARRYING VALUE OF ASSETS link:presentationLink link:calculationLink link:definitionLink 8040 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 8050 - Disclosure - CONCENTRATIONS OF CREDIT RISK link:presentationLink link:calculationLink link:definitionLink 8060 - Disclosure - SUMMARY OF SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 8070 - Disclosure - SUPPLEMENTARY OIL AND NATURAL GAS INFORMATION (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 8080 - Disclosure - INVESTMENT IN JOINT VENTURES link:presentationLink link:calculationLink link:definitionLink 8090 - Disclosure - INVESTMENT IN LAND INTERESTS link:presentationLink link:calculationLink link:definitionLink 8100 - Disclosure - OIL AND NATURAL GAS PROPERTIES link:presentationLink link:calculationLink link:definitionLink 8110 - Disclosure - SHARE REPURCHASE PROGRAM link:presentationLink link:calculationLink link:definitionLink 8120 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink