xbrli:pure iso4217:USD utr:dth C001031 2025-01-01 2025-03-31 C001031 ScheduleImportantChangesDuringTheQuarterYearAbstract 2025-01-01 2025-03-31 C001031 ScheduleStatementOfAccumulatedOtherComprehensiveIncomeAndHedgingActivitiesAbstract 2025-01-01 2025-03-31 C001031 ScheduleNotesToFinancialStatementsAbstract 2025-01-01 2025-03-31 C001031 2025-03-31 C001031 2024-12-31 C001031 2024-01-01 2024-03-31 C001031 ferc:ElectricUtilityMember 2025-01-01 2025-03-31 C001031 ferc:GasUtilityMember 2025-01-01 2025-03-31 C001031 ferc:GasUtilityMember 2024-01-01 2024-03-31 C001031 ferc:OtherUtilityMember 2025-01-01 2025-03-31 C001031 2023-12-31 C001031 TOTAL Credits to Retained Earnings (Account 439) (footnote details) 2025-01-01 2025-03-31 C001031 TOTAL Debits to Retained Earnings (Account 439) (footnote details) 2025-01-01 2025-03-31 C001031 TOTAL Debits to Retained Earnings (Account 439) (footnote details) 2024-01-01 2024-03-31 C001031 TOTAL Appropriations of Retained Earnings (Account 436) (footnote details) 2025-01-01 2025-03-31 C001031 TOTAL Dividends Declared-Preferred Stock (Account 437) (footnote details) 2025-01-01 2025-03-31 C001031 TOTAL Dividends Declared-Common Stock (Account 438) (footnote details) 2025-01-01 2025-03-31 C001031 2024-03-31 C001031 Other Changes (Explain) 2025-01-01 2025-03-31 C001031 Amortization of (Specify) (footnote details) 2025-01-01 2025-03-31 C001031 Other Adjustments to Cash Flows from Operating Activities 2025-01-01 2025-03-31 C001031 Other Adjustments to Cash Flows from Operating Activities 2024-01-01 2024-03-31 C001031 Other: Change in accounts payable-capital expenditures 2025-01-01 2025-03-31 C001031 Other: Change in accounts payable-capital expenditures 2024-01-01 2024-03-31 C001031 Other Adjustments to Cash Flows from Investment Activities: 2025-01-01 2025-03-31 C001031 Net Increase in Debt (Long Term Advances) 2025-01-01 2025-03-31 C001031 Other Retirements 2025-01-01 2025-03-31 C001031 Cash Distribution to Partner: Discovery Producer Services 2025-01-01 2025-03-31 C001031 ferc:GasUtilityMember 2025-03-31 C001031 Depreciation-Market Expansion 2025-01-01 2025-03-31 C001031 Deferred Taxes on Depreciation Regulatory Assets 2025-01-01 2025-03-31 C001031 Junction 2025-01-01 2025-03-31 C001031 Depreciation-Market Expansion 2024-12-31 C001031 Deferred Taxes on Depreciation Regulatory Assets 2024-12-31 C001031 Junction 2024-12-31 C001031 Depreciation-Market Expansion 2025-03-31 C001031 Deferred Taxes on Depreciation Regulatory Assets 2025-03-31 C001031 Junction 2025-03-31 C001031 Depreciation Mainline 2025-01-01 2025-03-31 C001031 Depreciation Mainline 2024-12-31 C001031 Depreciation Mainline 2025-03-31 C001031 Junction FT-2 2025-01-01 2025-03-31 C001031 Market Expansion FT1 2025-01-01 2025-03-31 C001031 Market Expansion FT2 2025-01-01 2025-03-31 C001031 Market Expansion IT 2025-01-01 2025-03-31 C001031 Mainline FT1 2025-01-01 2025-03-31 C001031 Mainline FT2 (Firm) 2025-01-01 2025-03-31 C001031 Mainline FT2 (Negotiated) 2025-01-01 2025-03-31 C001031 Mainline IT 2025-01-01 2025-03-31 C001031 Cashout FT1 2025-01-01 2025-03-31 C001031 Cashout FT2 2025-01-01 2025-03-31 C001031 Cashout IT 2025-01-01 2025-03-31 C001031 Junction FT-2 2025-01-01 2025-01-31 C001031 Market Expansion FT1 2025-01-01 2025-01-31 C001031 Market Expansion FT2 2025-01-01 2025-01-31 C001031 Market Expansion IT 2025-01-01 2025-01-31 C001031 Mainline FT1 2025-01-01 2025-01-31 C001031 Mainline FT2 (Firm) 2025-01-01 2025-01-31 C001031 Mainline FT2 (Negotiated) 2025-01-01 2025-01-31 C001031 Mainline IT 2025-01-01 2025-01-31 C001031 Junction FT-2 2025-02-01 2025-02-28 C001031 Market Expansion FT1 2025-02-01 2025-02-28 C001031 Market Expansion FT2 2025-02-01 2025-02-28 C001031 Market Expansion IT 2025-02-01 2025-02-28 C001031 Mainline FT1 2025-02-01 2025-02-28 C001031 Mainline FT2 (Firm) 2025-02-01 2025-02-28 C001031 Mainline FT2 (Negotiated) 2025-02-01 2025-02-28 C001031 Mainline IT 2025-02-01 2025-02-28 C001031 Junction FT-2 2025-03-01 2025-03-31 C001031 Market Expansion FT1 2025-03-01 2025-03-31 C001031 Market Expansion FT2 2025-03-01 2025-03-31 C001031 Market Expansion IT 2025-03-01 2025-03-31 C001031 Mainline FT1 2025-03-01 2025-03-31 C001031 Mainline FT2 (Firm) 2025-03-01 2025-03-31 C001031 Mainline FT2 (Negotiated) 2025-03-01 2025-03-31 C001031 Mainline IT 2025-03-01 2025-03-31 C001031 2025-01-01 2025-01-31 C001031 2025-02-01 2025-02-28 C001031 2025-03-01 2025-03-31 C001031 0 2025-01-01 2025-03-31 C001031 0 Other Receipts 2025-01-01 2025-03-31 C001031 ferc:DiscountedRateMember 2025-01-01 2025-01-31 C001031 ferc:NegotiatedRateMember 2025-01-01 2025-01-31 C001031 Linepack + systen balancing gas 2025-01-01 2025-01-31 C001031 ferc:DiscountedRateMember 2025-02-01 2025-02-28 C001031 ferc:NegotiatedRateMember 2025-02-01 2025-02-28 C001031 Linepack + system balancing gas 2025-02-01 2025-02-28 C001031 ferc:DiscountedRateMember 2025-03-01 2025-03-31 C001031 ferc:NegotiatedRateMember 2025-03-01 2025-03-31 C001031 Linepack + system balancing gas 2025-03-01 2025-03-31 C001031 ferc:GasUtilityMember ferc:ProductionAndGatheringPlantMember 2025-01-01 2025-03-31 C001031 ferc:GasUtilityMember ferc:TransmissionPlantMember 2025-01-01 2025-03-31 <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">5. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">7. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">8. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">9. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">10. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">11. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">12. None</span></div> <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">13. None</span></div> C001031 2/3-Q Discovery Gas Transmission LLC 2025 Q1 One Williams Center, WRC2.A, Tulsa Ok 74172 Joleen Cox Accounting Supervisor One Williams Center, WRC2.A, Tulsa Ok 74172 539-777-1567 O 2025-05-30 Robert Biffle Vice President Robert Biffle 2025-05-30 N/A N/A N/A 398184905 398520461 87597 101901 398272502 398622362 226121408 224032970 172151094 174589392 172151094 174589392 0 9519097 4551614 4564707 4499362 103097 88128 252415 14275029 9303391 44948993 44182938 1518977 1508039 12593034 13187000 59061004 58877977 245487127 242770760 160330146 160330140 -9813087 -10150960 150517059 150179180 37430494 36904962 37430494 36904962 1957860 2526314 2508720 1309101 1088013 1024000 400135 2130 2011005 1169238 7965733 6030783 278692 278692 1743149 1825143 47035000 47035000 517000 517000 49573841 49655835 245487127 242770760 6884130 6240936 0 6884130 6240936 0 3668457 3718654 0 3668457 3718654 0 123754 28689 0 123754 28689 0 2086539 1988381 0 2086539 1988381 0 98691 119115 0 98691 119115 0 19018 0 0 19018 0 0 0 0 0 0 0 22685 22685 0 22685 22685 0 966342 1024455 0 966342 1024455 0 466008 405750 0 466008 405750 0 0 0 1216 11059 0 1216 11059 0 1344250 448750 0 1344250 448750 0 751500 182750 0 751500 182750 0 0 0 0 0 0 0 0 0 0 0 525531 557396 0 525531 557396 0 6619289 6112292 6619289 6112292 264841 128644 264841 128644 -1907 15 82734 49288 80827 49303 5361 2440 7801 73026 49303 337867 177947 337867 177947 -10150954 -11048001 TOTAL Credits to Retained Earnings (Account 439) (footnote details) TOTAL Debits to Retained Earnings (Account 439) (footnote details) 4 5 337867 897041 TOTAL Appropriations of Retained Earnings (Account 436) (footnote details) TOTAL Dividends Declared-Preferred Stock (Account 437) (footnote details) TOTAL Dividends Declared-Common Stock (Account 438) (footnote details) -9813087 -10150960 -10150960 Other Changes (Explain) 2710765 2683910 Amortization of (Specify) (footnote details) 593966 277059 168442 -437344 1708369 520119 1148526 943978 -81984 -57792 Other Adjustments to Cash Flows from Operating Activities 693468 618292 4645483 3712901 -95420 1582609 Other: Change in accounts payable-capital expenditures -226580 -345443 -322000 1237166 4967483 Other Adjustments to Cash Flows from Investment Activities: -4645483 -1237166 Net Increase in Debt (Long Term Advances) Other Retirements Cash Distribution to Partner: Discovery Producer Services 2475735 1921405 4397140 398184905 398184905 398184905 398184905 87597 398272502 226121408 172151094 226121408 226121408 226121408 226121408 Depreciation-Market Expansion Deferred Taxes on Depreciation Regulatory Assets 1 2 Junction 3 39292 686634 43457012 788740 1228 21457 38064 665177 44245752 788740 22685 Depreciation Mainline 1825143 -81994 1743149 -81994 Junction FT-2 Market Expansion FT1 4 5 Market Expansion FT2 6 Market Expansion IT 7 Mainline FT1 9 Mainline FT2 (Firm) 10 Mainline FT2 (Negotiated) 11 Mainline IT 12 Cashout FT1 13 Cashout FT2 14 Cashout IT 15 1143260 3196828 428889 333906 3499979 9155001 472269 820713 4900 12996 661 1149 163342 284946 29256 3302 343445 983338 89731 69976 163342 284946 29256 3302 348345 996334 90392 71125 939157 2189127 326449 270735 2491981 8846955 361450 855854 3489 12609 506 1198 134439 269110 23513 2723 348387 968087 68676 98112 134439 269110 23513 2723 351876 980696 69182 99310 1395558 612944 318329 283528 753154 9791554 414511 1022073 1054 13847 580 1431 200414 295669 27058 2860 377013 1066507 78757 119729 200414 295669 27058 2860 378067 1080354 79337 121160 19050845 19706 1967336 1987042 16281708 17802 1913047 1930849 14591651 16912 2168007 2184919 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4100121 153356 153356 4101747 149176 149176 4534174 163053 163053 10715 299 299 12726 398 398 10451 304 304 4110836 153655 153655 4114473 149574 149574 4544625 163357 163357 738879 111910 111910 650451 99360 99360 680100 103465 103465 738879 111910 111910 650451 99360 99360 680100 103465 103465 23900560 19706 2232901 2252607 21046632 17802 2161981 2179783 19816376 16912 2434829 2451741 12769934 49924204 Other Receipts 62694138 12769934 49893635 30569 62694138 -4772 62689366 0 10046 5445 15491 10046 5445 15491 41470 22480 63950 41470 22480 63950 31424 17035 48459 Linepack + systen balancing gas 31424 17035 48459 38457233 38457233 7850 3167 11017 7850 3167 11017 29578 11935 41513 29578 11935 41513 21728 8768 30496 Linepack + system balancing gas 21728 8768 30496 3681 380 4061 3681 380 4061 91264 9427 100691 91264 9427 100691 Linepack + system balancing gas 94945 9807 104752 94945 9807 104752 52660303 345524602 398184905 466586 12769934 6102811 49924204 314734 6884130 75273 2664 77937 -783145 168528 -614617 -536680 97521 -23 29849 166352 3425 1054429 23268 1526688 2901509 934 2148 -13295 62064 2 70169 122022 3023531 3023531 512684 86471 1401 175635 163635 47641 230034 59474 -998 18791 13393 1305359 1305359 145681 49162 194843 1940858 49529 0 1990387 2086539 98691 2185230 The Workiva Platform