Saltwater Disposal Wells in Matagorda County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
80
Permitted Capacity
1.1M bbl/d
Injected 12mo (thru 2025-06)
4.2M bbl
UIC Permits All Time
390
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Inactive | H. SMITH #5 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #6 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #7 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #8 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #9 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #12 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #13 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #14 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Inactive | H. SMITH #15 | 42-321-00000 | UNDERGROUND SERVICES MARKHAM,LLC | UIC | 30,000 | -- | 3,000–7,350 |
| Plugged | SMITH, LEWIS EDWIN ET AL #1D | 42-321-31662 | UNDERGROUND SERVICES MARKHAM,LLC | Disposal | 18,000 | -- | 1,280–3,300 |
| Plugged | OHIO SUN UNIT #3 C | 42-321-00056 | PREMIER NATURAL RES, LLC | Disposal | 15,000 | -- | 2,030–5,259 |
| Plugged | OHIO-SUN UNIT #36A | 42-321-00063 | PREMIER NATURAL RES, LLC | Disposal | 15,000 | -- | 2,605–3,650 |
| Cancelled | OHIO-SUN UNIT #20J | 42-321-00085 | MARATHON OIL CO | Disposal | 15,000 | -- | 2,100–2,870 |
| Inactive | MATL-TRULL -H- SAND UNIT #2 | 42-321-30178 | KD ENGY, LLC | Disposal | 15,000 | -- | 4,000–6,500 |
| Plugged | OHIO-SUN UNIT #27A | 42-321-00054 | COMSTOCK OIL & GAS, LP | Disposal | 15,000 | -- | 2,250–5,100 |
| Inactive | OHIO-SUN UNIT #9K | 42-321-31220 | ALLEGIANT RES, LLC | Disposal | 15,000 | -- | 2,000–5,500 |
| Plugged | TAYLOR, ANNA B. #1D | 42-321-00685 | WHITE OAK OPER CO LLC | Disposal | 15,000 | -- | 1,582–1,850 |
| Plugged | OHIO-SUN UNIT #22J | 42-321-00092 | COMSTOCK OIL & GAS, INC | Disposal | 15,000 | -- | 2,050–2,600 |
| Inactive | OHIO-SUN UNIT #11F | 42-321-00142 | ALLEGIANT RES, LLC | Disposal | 15,000 | -- | 4,130–6,880 |
| Inactive | OHIO-SUN UNIT #6K | 42-321-02844 | ALLEGIANT RES, LLC | Disposal | 15,000 | -- | 2,850–5,500 |
| Plugged | OHIO-SUN UNIT #4C | 42-321-00060 | COMSTOCK OIL & GAS, LP | Disposal | 12,000 | -- | 2,020–2,550 |
| Plugged | OHIO-SUN UNIT #33A | 42-321-00067 | MARATHON OIL CO | Disposal | 12,000 | -- | 2,025–2,525 |
| Cancelled | MCWILLIAMS GAS UNIT #2 | 42-321-02737 | ALTA MESA SERVICES, LP | Disposal | 12,000 | -- | 6,020–6,420 |
| Plugged | BLESSING PIERCE #5 D | 42-321-31187 | SUE-ANN OPER, L.C | Disposal | 10,000 | -- | 1,900–2,800 |
| Plugged | BLESSING -D- #14 | 42-321-81336 | SUE-ANN OPER, L.C | Disposal | 10,000 | -- | 1,950–2,700 |
| Plugged | TRULL, B. W. #1R | 42-321-32101 | SIANA OIL & GAS | Disposal | 10,000 | -- | 2,050–3,500 |
| Plugged | RICHERS, E. #2 | 42-321-00897 | K-3 RES, LP | Injection | 10,000 | -- | 5,610–6,450 |
| Inactive | WADSWORTH #1 | 42-321-32220 | ZONE RIDGE OPERATING, LLC | Disposal | 10,000 | -- | 2,400–5,800 |
| Plugged | ZAPALAC GAS UNIT #1 | 42-321-32177 | GULF COAST ACQUISITIONS CO. L.C | Disposal | 10,000 | -- | 3,350–3,850 |
| Plugged | BLESSING F-3 UNIT O/A #15D | 42-321-02258 | SUE-ANN OPER, L.C | Disposal | 10,000 | -- | 2,600–2,800 |
| Cancelled | HARRIMAN, W.H. #3 | 42-321-00000 | KATY RESOURCES LLC | Disposal | 10,000 | -- | 2,050–3,600 |
| Plugged | OHIO-SUN UNIT #1F | 42-321-80753 | MARATHON OIL CO | Disposal | 8,000 | -- | 1,670–1,748 |
| Plugged | HURLOCK, HELEN B #2 | 42-321-00618 | SURE FLOW OIL & GAS, INC. | Injection | 8,000 | -- | 1,700–8,923 |
| Plugged | OHIO SUN UNIT #3J | 42-321-01621 | MARATHON OIL CO | Disposal | 8,000 | -- | 1,900–2,065 |
| Plugged | OHIO-SUN UNIT #10J | 42-321-01622 | MARATHON OIL CO | Disposal | 8,000 | -- | 2,225–2,295 |
| Plugged | OHIO-SUN UNIT #2A | 42-321-81691 | MARATHON OIL CO | Disposal | 8,000 | -- | 2,025–2,205 |
| Plugged | THOMASSON, SADIE #3 | 42-321-00607 | UMC PETRO CORP | Disposal | 8,000 | -- | 5,900–6,400 |
| Plugged | OHIO-SUN UNIT #2F | 42-321-00141 | COMSTOCK OIL & GAS, INC | Disposal | 8,000 | -- | 2,096–2,555 |
| Plugged | OHIO-SUN UNIT #5K | 42-321-80299 | MARATHON OIL CO | Disposal | 8,000 | -- | 1,937–2,473 |
| Plugged | COBB, F. G. -C- #9 | 42-321-00434 | TEXACO E & P INC | Disposal | 7,000 | -- | 1,650–4,100 |
| Plugged | NORTHERN RANCH #3D | 42-321-00025 | APC OPER PARTNERSHIP | Disposal | 6,000 | -- | 1,850–3,600 |
| Plugged | MOORE ESTATE #2 | 42-321-00427 | URBAN OIL & GAS GROUP, LLC | Disposal | 6,000 | -- | 2,500–5,700 |
| Plugged | OHIO-SUN UNIT #4K | 42-321-00102 | MARATHON OIL CO | Disposal | 6,000 | -- | 1,940–2,185 |
| Plugged | THOMASSON, SADIE E. #4 | 42-321-00608 | SUPERIOR OIL CO, THE | Disposal | 6,000 | -- | 5,350–5,960 |
| Inactive | OHIO-SUN UNIT #2F | 42-321-00141 | ALLEGIANT RES, LLC | Disposal | 6,000 | -- | 2,030–6,000 |
| Plugged | ALVENA SWD #1 | 42-321-02029 | FIELD PETRO CORP | Disposal | 5,000 | -- | 5,955–6,200 |
| Plugged | JOHNSON, SALLIE #4D | 42-321-81218 | APC OPER PARTNERSHIP | Disposal | 5,000 | -- | 1,534–1,746 |
| Plugged | BRAMAN -C- #1D | 42-321-02853 | OAK ENGY, LLC | Disposal | 5,000 | -- | 1,780–1,860 |
| Plugged | TRULL, B. W., ESTATE #1 | 42-321-01941 | CLEARWATER DISPOSAL SYSTEMS, LLC | Disposal | 5,000 | -- | 2,030–2,400 |
| Plugged | MATTHES #1 | 42-321-30782 | IOC PROD, INC | Disposal | 5,000 | -- | 1,100–5,205 |
| Plugged | CORNELIUS, ETHEL #3D | 42-321-30049 | SUPERIOR OIL CO, THE | Disposal | 5,000 | -- | 1,600–2,200 |
| Plugged | OHIO-SUN UNIT #2JB | 42-321-01620 | MARATHON OIL CO | Disposal | 5,000 | -- | 4,920–4,950 |
| Plugged | COBB, F. G. -B- #17 | 42-321-00455 | APC OPER PARTNERSHIP | Disposal | 5,000 | -- | 1,900–6,000 |
| Cancelled | ANDERSON #1D | 42-321-31275 | GEL PETRO, INC | Disposal | 5,000 | -- | 5,515–6,390 |
| Inactive | COBB, F. G. -B- #27 | 42-321-00452 | TEXIAN OPERATING COMPANY, LLC | Injection | 5,000 | -- | 7,130–7,982 |
| Plugged | COBB, F. G. -B- #10 | 42-321-00446 | APC OPER PARTNERSHIP | Injection | 5,000 | -- | 7,178–8,013 |
| Inactive | COBB, F. G. -B- #B 6 | 42-321-00442 | TEXIAN OPERATING COMPANY, LLC | Injection | 5,000 | -- | 7,152–7,984 |
| Plugged | TRUITT & GRAVIER A/C #1 #4 | 42-321-00674 | CHAPARRAL ENGY, L.L.C | Injection | 5,000 | -- | 5,000–9,640 |
| Plugged | TAYLOR, ANNA B. "B" #4D | 42-321-00689 | EOG RES, INC | Disposal | 5,000 | -- | 3,000–5,930 |
| Inactive | WADSWORTH, A. H. #1 | 42-321-32081 | ZONE RIDGE OPERATING, LLC | Disposal | 5,000 | -- | 2,400–5,800 |
| Cancelled | BRAMAN "C" #3D | 42-321-00000 | SUN OIL COMPANY-MCALLEN | Injection | 5,000 | -- | 8,692–8,760 |
| Plugged | HUEBNER TRUSTS #1WD | 42-321-32129 | GEMARMI INC. - | Injection | 5,000 | -- | 9,255–10,380 |
| Plugged | METZGER SWD #4DR | 42-321-31704 | EXPRO ENGINEERING, INC | Disposal | 4,500 | -- | 1,920–2,402 |
| Plugged | MILLICAN UNIT #1 | 42-321-01033 | RISEDEN SERVICES, INC | Injection | 4,500 | -- | 10,100–10,222 |
| Plugged | METZGEN (METZGER) GAS UNIT #4D #4D | 42-321-30460 | COMSTOCK OIL & GAS, INC | Disposal | 4,500 | -- | 1,925–2,211 |
| Cancelled | COBB, F. G. -B- #20D | 42-321-00458 | TEXACO INC | Disposal | 4,500 | -- | 2,000–3,950 |
| Plugged | COBB, F.G. "B" #D 20 | 42-321-00458 | APC OPER PARTNERSHIP | Disposal | 4,500 | -- | 2,000–3,950 |
| Plugged | TRULL, R. B. #1 | 42-321-30021 | KD ENGY, LLC | Disposal | 4,500 | -- | 1,650–2,801 |
| Cancelled | ADA IRENE HURST #1 | 42-321-00881 | REDDY DISPOSALS, LLC | Disposal | 4,000 | -- | 3,530–6,390 |
| Plugged | KOUNTZE, DENMAN, ETAL -A- #2W | 42-321-01720 | ROSENTHAL, STANLEY H | Injection | 4,000 | -- | 6,200–6,728 |
| Plugged | HURST, A.I. #B 2 | 42-321-00902 | OUTLINE OIL COMPANY LLC | Disposal | 4,000 | -- | 3,450–3,650 |
| Plugged | THOMPSON GAS UNIT #3 | 42-321-02731 | ALTA MESA SERVICES, LP | Disposal | 3,600 | -- | 1,900–2,450 |
| Plugged | MCWILLIAMS #1D | 42-321-31785 | ALTA MESA SERVICES, LP | Disposal | 3,600 | -- | 2,320–2,700 |
| Cancelled | BRAMAN -C- #5 | 42-321-00529 | HAMMAN OIL & REFINING CO | Disposal | 3,500 | -- | 1,900–2,950 |
| Plugged | CLEVELAND, MAY #4 | 42-321-31292 | ROSENTHAL, STANLEY H | Disposal | 3,500 | -- | 1,530–2,100 |
| Plugged | WADSWORTH RANCH #3 | 42-321-02249 | EXPRO ENGINEERING, INC | Disposal | 3,500 | -- | 1,600–2,600 |
| Plugged | PETERSON, RALPH E. ETAL UNIT #3 #1 | 42-321-30940 | PRAIRIE PRODUCING CO | Disposal | 3,500 | -- | 5,920–7,500 |
| Cancelled | -- #3 | 42-321-00000 | TEXAS PACIFIC OIL CO. | Disposal | 3,000 | -- | 2,258–2,388 |
| Plugged | RUGELEY, HENRY #7 | 42-321-00415 | APC OPER PARTNERSHIP | Disposal | 3,000 | -- | 2,500–5,750 |
| Plugged | GRACEY UNIT #7 | 42-321-30865 | TEXACO INC | Injection | 3,000 | -- | 10,100–10,250 |
| Plugged | MIDFIELDS SWD #1 | 42-321-81648 | SUE-ANN OPER, L.C | Disposal | 3,000 | -- | 1,340–2,460 |
| Plugged | TRULL, R. B. #1 | 42-321-01931 | INTERCOASTAL ENGY, INC | Injection | 3,000 | -- | 8,155–8,187 |
| Plugged | RUGELEY, HENRY #8 | 42-321-81326 | APC OPER PARTNERSHIP | Disposal | 3,000 | -- | 1,710–1,735 |
| Plugged | CLARK, T.E."B" #1D | 42-321-30506 | ENGELKE, R. H | Disposal | 3,000 | -- | 1,832–2,890 |
| Plugged | CONKLIN #1 | 42-321-32012 | REDDY DISPOSALS, LLC | Disposal | 3,000 | -- | 5,900–6,400 |
| Plugged | STEELE, LOUISE M. ET AL #1 | 42-321-30047 | TXO PROD CORP | Disposal | 3,000 | -- | 5,700–6,300 |
| Plugged | KOUNTZE, DENMAN, ETAL -A- #B3 | 42-321-81670 | ROSENTHAL, STANLEY H | Disposal | 3,000 | -- | 1,835–2,380 |
| Plugged | SMITH, HOWARD, FEE #7 | 42-321-01222 | MORTIMER EXPL CO | Disposal | 3,000 | -- | 1,594–1,736 |
| Plugged | SMITH, HOWARD SWD #1 #1 | 42-321-01245 | GDDC INC | Injection | 2,500 | -- | 1,180–1,200 |
| Plugged | GRESHAM, J. W. -B- #2 | 42-321-30248 | FOSTER PETROLEUM COMPANY, INC. | Disposal | 2,500 | -- | 2,360–2,514 |
| Plugged | TRULL #7 | 42-321-02312 | VINTAGE PETRO, INC | Disposal | 2,500 | -- | 2,405–2,532 |
| Plugged | GRACEY UNIT #2D | 42-321-30324 | TEXACO INC | Disposal | 2,500 | -- | 1,450–2,550 |
| Plugged | METZGEN (METZGER) GAS UNIT #4D #1 | 42-321-30460 | RISEDEN SERVICES, INC | Disposal | 2,400 | -- | 1,550–2,660 |
| Plugged | CULBERTSON, W. J. #2D | 42-321-00591 | UMC PETRO CORP | Disposal | 2,400 | -- | 1,550–1,960 |
| Plugged | TRULL, R. B. ET AL #1 | 42-321-31756 | DEEP ROCK RES, INC | Disposal | 2,000 | -- | 5,200–5,700 |
| Plugged | LEWIS, FRANK H. FAMILY -A- #3 | 42-321-31940 | ICARUS OPER CORP | Injection | 2,000 | -- | 3,758–3,763 |
| Plugged | LEWIS, FRANK H. FAMILY -A- #2D | 42-321-31923 | ICARUS OPER CORP | Disposal | 2,000 | -- | 1,810–1,900 |
| Cancelled | FAITH SUMMERS #1 | 42-321-31066 | NORTHRIDGE OIL CO | Disposal | 2,000 | -- | 1,700–2,700 |
| Plugged | MOORE ESTATE #6 | 42-321-00422 | TEXACO INC | Disposal | 2,000 | -- | 2,300–2,700 |
| Plugged | TRULL, F.M. UNIT 2 #1 | 42-321-20245 | SUE-ANN PROD CO | Disposal | 2,000 | -- | 2,000–3,650 |
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.