Saltwater Disposal Wells in San Patricio County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
54
Permitted Capacity
439,400 bbl/d
Injected 12mo (thru 2025-06)
12.1M bbl
UIC Permits All Time
372
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Active | E. H. WELDER 'C' #97W | 42-409-01265 | MCGOWAN WORKING PTRS, INC | Injection | 5,000 | 1.8M | 5,635–5,700 |
| Active | WELDER, E. H., -C- #80 | 42-409-01898 | MCGOWAN WORKING PTRS, INC | Injection | 5,000 | 1.7M | 5,620–5,740 |
| Active | WELDER, E. H., -C- #94 | 42-409-01853 | MCGOWAN WORKING PTRS, INC | Injection | 5,000 | 1.5M | 5,615–5,735 |
| Active | WELDER, E. H., -C- #89 | 42-409-01842 | MCGOWAN WORKING PTRS, INC | Injection | 5,000 | 1.5M | 5,650–5,750 |
| Active | USHER #1 | 42-409-02426 | MAYFIELD ENERGY, LLC | Disposal | 3,500 | 957,130 | 5,140–5,525 |
| Active | PAPPY UNIT NO. 1 #2 | 42-409-33038 | SANDALWOOD EXPL, L.P | Disposal | 5,000 | 509,921 | 2,320–3,200 |
| Active | KELLOGG GAS UNIT #4 | 42-409-31947 | ORX RES, L.L.C | Injection | 8,000 | 307,375 | 7,100–8,650 |
| Active | BAYLOR WHATLEY UNIT #2 | 42-409-32788 | POCO LLC | Injection | 5,000 | 258,912 | 3,616–4,678 |
| Active | DIMMICK #1D | 42-409-02102 | ANDERSON OIL LTD | Disposal | 2,000 | 253,683 | 4,015–4,130 |
| Active | CANTU, NARCISCO #2R | 42-409-32247 | B&D DISPOSAL LTD | Injection | 5,000 | 230,967 | 2,200–3,961 |
| Active | WELDER, MINNIE S. #73 | 42-409-32178 | ALLEGIANT RES, LLC | Injection | 10,000 | 206,236 | 3,950–4,976 |
| Active | WELDER, MINNIE S. #103D | 42-409-33067 | ALLEGIANT RES, LLC | Injection | 30,000 | 206,055 | 4,141–5,000 |
| Active | WELDER, MINNIE S. #104D | 42-409-33068 | ALLEGIANT RES, LLC | Injection | 30,000 | 205,215 | 4,150–5,000 |
| Active | WELDER, MINNIE S. #69D | 42-409-32057 | ALLEGIANT RES, LLC | Injection | 10,000 | 203,635 | 3,954–4,982 |
| Active | WELDER, MINNIE S. #68 | 42-409-32058 | ALLEGIANT RES, LLC | Injection | 10,000 | 195,577 | 4,140–4,966 |
| Active | WELDER, MINNIE S. #46 | 42-409-01178 | ALLEGIANT RES, LLC | Disposal | 0 | 192,588 | 4,746–4,960 |
| Active | WELDER, MINNIE S. #23 | 42-409-01660 | ALLEGIANT RES, LLC | Disposal | 20,000 | 189,583 | 4,717–4,920 |
| Active | WELDER, MINNIE S. #82 | 42-409-32450 | ALLEGIANT RES, LLC | Disposal | 20,000 | 187,001 | 4,732–4,966 |
| Active | HUNT, J. M. #9 | 42-409-01453 | WALLIS ENGY, INC | Disposal | 5,000 | 180,000 | 5,000–5,250 |
| Active | WELDER, MINNIE S. #56D | 42-409-01688 | ALLEGIANT RES, LLC | Injection | 15,000 | 160,763 | 4,800–7,200 |
| Active | WELDER RANCH #14W | 42-409-31152 | SUN EXPL, INC | Injection | 5,000 | 146,150 | 3,670–4,650 |
| Active | WELDER, J. F. UNIT #C 4 | 42-409-03811 | 84 ENGY LLC | Disposal | 5,000 | 138,276 | 2,702–2,920 |
| Active | HUNT, J. M. #6 | 42-409-01450 | WALLIS ENGY, INC | Disposal | 8,000 | 105,000 | 4,800–5,300 |
| Active | WELDER, MINNIE S. #76 | 42-409-32240 | ALLEGIANT RES, LLC | Injection | 10,000 | 103,607 | 3,960–4,910 |
| Active | WELDER, MINNIE S. #74 | 42-409-32194 | ALLEGIANT RES, LLC | Injection | 10,000 | 98,707 | 4,814–5,040 |
| Active | WELDER, MINNIE S. #50 | 42-409-01684 | ALLEGIANT RES, LLC | Disposal | 20,000 | 93,480 | 4,800–4,985 |
| Active | FOWLER (MCDONNOLD) #1 | 42-409-32483 | SUN EXPL, INC | Injection | 1,000 | 76,200 | 1,630–2,950 |
| Active | SCHMIDT, HENRY W. #2 | 42-409-32809 | TARE RESOURCES, LLC | Disposal | 15,000 | 58,358 | 6,750–8,650 |
| Active | STATE TRACT 975 #4 | 42-409-33056 | MEGO RES, LLC | Injection | 6,000 | 41,808 | 7,503–8,149 |
| Active | WELDER #A 38 | 42-409-32958 | DALLAS PETRO GROUP, LLC | Disposal | 5,000 | 31,625 | 3,310–3,340 |
| Active | BRITTAIN, J.L. #4 | 42-409-01997 | PULLIN LEASE SERVICE, INC | Injection | 5,000 | 14,430 | 3,800–4,100 |
| Active | STATE TRACT 686 #2 | 42-409-30682 | ORX RES, L.L.C | Disposal | 4,000 | 9,024 | 5,250–5,300 |
| Active | WELDER, MINNIE S. #95 | 42-409-32949 | ALLEGIANT RES, LLC | Injection | 10,000 | 100 | 4,114–4,959 |
| Active | WELDER, MINNIE S. #20 | 42-409-01657 | ALLEGIANT RES, LLC | Injection | 10,000 | 100 | 4,111–4,974 |
| Active | WRIGHT #1 | 42-409-32182 | NEW HORIZON INVESTMENTS LTD | Disposal | 2,800 | 25 | 2,730–2,780 |
| Active | WELDER, MINNIE S. #105D | 42-409-33081 | ALLEGIANT RES, LLC | Injection | 20,000 | -- | 4,133–4,976 |
| Active | HUNT, J. M. #8 | 42-409-01452 | WALLIS ENGY, INC | Disposal | 14,000 | -- | 4,080–4,195 |
| Active | WELDER, E. H., -C- #73 | 42-409-01868 | MCGOWAN WORKING PTRS, INC | Injection | 10,000 | -- | 3,000–5,000 |
| Active | BROWN-MAUCH UNIT #1 | 42-409-33082 | WELDERXP LTD | Injection | 10,000 | -- | 5,340–5,800 |
| Active | ROSSON, J. R. #5 | 42-409-01953 | CERBERUS ENGINEERING, LLC | Disposal | 7,500 | -- | 4,140–4,180 |
| Active | WELDER EFH #2 | 42-409-33008 | WELDERXP LTD | Injection | 6,000 | -- | 5,650–5,700 |
| Active | WELDER, J. F., UNIT #B 16 | 42-409-30012 | 84 ENGY LLC | Disposal | 6,000 | -- | 2,230–4,520 |
| Active | PAPPY UNIT NO. 1 #1 | 42-409-33000 | SANDALWOOD EXPL, L.P | Disposal | 5,000 | -- | 2,770–3,100 |
| Active | HUTTO #3 | 42-409-31580 | DURANGO RES CORP | Injection | 5,000 | -- | 3,490–4,650 |
| Active | HUNT, J. M. #10 | 42-409-01444 | WALLIS ENGY, INC | Disposal | 4,000 | -- | 2,068–2,130 |
| Active | WELDER "C" #4 | 42-409-32482 | DALLAS PETRO GROUP, LLC | Disposal | 4,000 | -- | 2,700–2,890 |
| Active | WELDER, R. H., -B- #18 | 42-409-30011 | DALLAS PETRO GROUP, LLC | Disposal | 4,000 | -- | 2,500–3,050 |
| Active | SABCO GREGORY SWD #1 | 42-409-32575 | WHITE MARLIN OPER CO, LLC | Disposal | 2,000 | -- | 2,500–5,100 |
| Active | WILLIAMS, JAMES P. #4 | 42-409-01976 | TEXAS, LES & CO | Disposal | 2,000 | -- | 4,000–4,370 |
| Active | WELDER, J. F., UNIT #C 6 | 42-409-03808 | 84 ENGY LLC | Disposal | 2,000 | -- | 1,300–4,300 |
| Active | HOSKINSON A #3 D | 42-409-02768 | PROLINE ENERGY RESOURCES INC | Disposal | 1,000 | -- | 1,180–1,600 |
| Active | BROWN, C. S. #1 | 42-409-30196 | SUN EXPL, INC | Disposal | 800 | -- | 1,575–2,500 |
| Active | FLINN #13D | 42-409-33078 | ANGEL OPERATING LLC | Injection | 20,000 | -- | 4,000–5,450 |
| Active | FPC FLINN #2 | 42-409-32202 | INLAND OCEAN, INC | Injection | 800 | -- | 5,650–6,860 |
| Plugged | WELDER, MINNIE S. #30D | 42-409-01666 | ALLEGIANT RES, LLC | Disposal | 0 | 186,856 | 4,700–5,000 |
| Plugged | WELDER, MINNIE S. #55 | 42-409-01687 | ALLEGIANT RES, LLC | Injection | 10,000 | 184,154 | 7,305–7,490 |
| Plugged | SIMS #7 | 42-409-80537 | WALLIS ENGY, INC | Disposal | 1,500 | 2,310 | 3,085–3,185 |
| Plugged | WELDER, MINNIE S. #48D | 42-409-01682 | ALLEGIANT RES, LLC | Injection | 15,000 | -- | 3,954–5,000 |
| Inactive | WELDER, E. H., -C- #17 | 42-409-01268 | MCGOWAN WORKING PTRS, INC | Injection | 6,000 | -- | 5,640–5,760 |
| Inactive | BEYER #1 | 42-409-32532 | ZONE RIDGE OPERATING, LLC | Injection | 5,000 | -- | 2,980–5,820 |
| Inactive | EWING -C- #1 | 42-409-80204 | TEXAS, LES & CO | Injection | 0 | -- | 6,930 |
| Cancelled | ROB WELDER #1 | 42-409-32978 | SANDALWOOD EXPL, L.P | Injection | 40,000 | -- | 3,950–5,100 |
| Plugged | SPEER FEE #3B | 42-409-03263 | NYE EXPL & PROD, L.L.C | Disposal | 25,000 | -- | 4,100–4,500 |
| Plugged | WELDER, MINNIE S. #24 | 42-409-01661 | ALLEGIANT RES, LLC | Disposal | 20,000 | -- | 4,820–4,980 |
| Cancelled | SMH #1D | 42-409-33132 | HUGHES LEGACY LLC | Injection | 20,000 | -- | 4,095–5,205 |
| Cancelled | FLINN #18D | 42-409-33106 | ALLEGIANT RES, LLC | Injection | 20,000 | -- | 4,000–5,483 |
| Cancelled | HAVELKA #1D | 42-409-33137 | JURA ENGY OPER LLC | Disposal | 20,000 | -- | 4,000–4,330 |
| Plugged | SCHMIDT, DAVID ALLEN ET UX #2 | 42-409-01992 | PETRO CORP OF TEXAS | UIC | 15,000 | -- | 4,075–4,325 |
| Plugged | SCHMIDT, DAVID ALLEN ET UX #7 | 42-409-81697 | PETRO CORP OF TEXAS | UIC | 15,000 | -- | 4,050–4,250 |
| Plugged | MAYO, J. W. #35 | 42-409-01342 | HEC PETROLEUM, INC. | Disposal | 15,000 | -- | 3,475–3,670 |
| Plugged | WELDER, MINNIE S. #36D | 42-409-01671 | ABRAXAS PETRO CORP | Disposal | 15,000 | -- | 3,300–5,000 |
| Plugged | WELDER, MINNIE S. #60D | 42-409-01692 | SUPERIOR OIL CO, THE | Disposal | 15,000 | -- | 4,700–5,000 |
| Plugged | WELDER, MINNIE S. #17WD | 42-409-01654 | ABRAXAS PETRO CORP | Disposal | 15,000 | -- | 4,700–5,000 |
| Plugged | MAYO, J. W., A/C 1 #3 | 42-409-01329 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 3,500–3,640 |
| Plugged | MAYO, J. W., A/C 1 #6 | 42-409-01355 | HEC PETROLEUM, INC. | Disposal | 15,000 | -- | 3,490–3,670 |
| Plugged | MAYO, J. W., A/C 1 #5 | 42-409-01330 | HEC PETROLEUM, INC. | Disposal | 15,000 | -- | 3,495–3,600 |
| Plugged | MAYO, J. W., A/C 1 #4 | 42-409-01354 | HEC PETROLEUM, INC. | Disposal | 15,000 | -- | 3,507–3,670 |
| Plugged | TAFT GIN AND SEED CO., INC. #2 | 42-409-01314 | HEEP, MINNIE BELLE | UIC | 12,000 | -- | 4,050–4,200 |
| Plugged | MAYO, J. W., A/C 2 #37 | 42-409-01366 | HEC PETROLEUM, INC. | Injection | 12,000 | -- | 4,200–4,300 |
| Plugged | MAYO, J. W., A/C 2 #36 | 42-409-01365 | HEC PETROLEUM, INC. | Injection | 12,000 | -- | 4,200–4,300 |
| Plugged | MAYO, J. W., A/C 1 #84 | 42-409-32055 | HEC PETROLEUM, INC. | Injection | 12,000 | -- | 3,940–4,000 |
| Plugged | MAYO, J. W., A/C 1 #44 | 42-409-01370 | YOUNGBLOOD, C. S. III | UIC | 12,000 | -- | 4,200–4,300 |
| Plugged | IVES, BEN E. #4 | 42-409-02580 | NAVAJO EXPL, INC | UIC | 10,000 | -- | 5,289–5,315 |
| Cancelled | WELDER, E. H. -C- #164 | 42-409-31681 | MCGOWAN WORKING PTRS, INC | Disposal | 10,000 | -- | 3,950–4,850 |
| Inactive | WELDER, MINNIE S. #80 | 42-409-32447 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 4,158–4,972 |
| Inactive | WELDER, MINNIE S. #47 | 42-409-01681 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 3,946–4,972 |
| Plugged | WELDER, C. #167 | 42-409-32080 | MARATHON OIL CO | Injection | 10,000 | -- | 2,930–5,010 |
| Plugged | MAYO, J. W., A/C 1 #2 | 42-409-01325 | HEC PETROLEUM, INC. | Disposal | 10,000 | -- | 3,470–3,670 |
| Inactive | WELDER, MINNIE S. #4 | 42-409-01644 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 3,965–4,963 |
| Plugged | MAYO, J. W., A/C 1 #8 | 42-409-01326 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 3,540–3,700 |
| Inactive | WELDER, MINNIE S. #71 | 42-409-32119 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 3,938–4,966 |
| Plugged | ROOTS, MAYO #1 | 42-409-31201 | BELLOWS OPER CO., L. C | Disposal | 10,000 | -- | 3,300–8,800 |
| Plugged | FORD, MARIE WELDER #5 | 42-409-30535 | GULFMAX ENVIRONMENTAL, LLC | Injection | 10,000 | -- | 3,100–6,712 |
| Plugged | MAYO, J. W., A/C 1 #38 | 42-409-01367 | HEC PETROLEUM, INC. | Injection | 10,000 | -- | 4,200–4,300 |
| Plugged | BLASCHKE - MAYO #19 | 42-409-31800 | HEC PETROLEUM, INC. | Injection | 10,000 | -- | 6,300–8,266 |
| Inactive | WELDER, E.H. "E" #32 | 42-409-32497 | MCGOWAN WORKING PTRS, INC | Injection | 10,000 | -- | 4,000–6,470 |
| Inactive | WELDER, MINNIE S. #66H | 42-409-31893 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 3,955–4,968 |
| Plugged | NUECES BAY ST 688 #3 | 42-409-32900 | ENERGY TWENTY OPERATING LLC | Disposal | 9,000 | -- | 4,000–6,000 |
| Plugged | FLINN, J. W., ESTATE #5 | 42-409-01417 | SUE-ANN OIL & GAS CO | Injection | 9,000 | -- | 4,045–4,070 |
| Plugged | FLINN, J. W., ESTATE #1 | 42-409-01308 | OXOCO EXPL&PROD,INC | UIC | 9,000 | -- | 4,041–4,064 |
page 1 of 4 · 372 wells
Source: RRC UIC well master and H-10 injection filings. H-10s are annual filings on staggered anniversaries — injected volumes shown through 2025-06, the newest month with complete reporting; recent months are never estimated.