Saltwater Disposal Wells in Refugio County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
231
Permitted Capacity
2.1M bbl/d
Injected 12mo (thru 2025-06)
73.5M bbl
UIC Permits All Time
829
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Active | HEARD, CLAUDE E. ET AL #27 | 42-391-00641 | HILCORP ENGY CO | Injection | 3,000 | -- | 3,356–3,397 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #A008 | 42-391-30193 | HILCORP ENGY CO | Injection | 3,000 | -- | 5,790–5,830 |
| Active | TOM O'CONNOR(5600 FOOT SAND)UNIT #W806B | 42-391-00420 | HILCORP ENGY CO | Injection | 2,750 | -- | 5,070–5,800 |
| Active | TOM O'CONNOR (4150 FT. SD.) UNIT #W830A | 42-391-00438 | HILCORP ENGY CO | Injection | 2,500 | -- | 4,158–4,178 |
| Active | TOM O'CONNOR (4150 FT. SD.) UNIT #W817A | 42-391-00475 | HILCORP ENGY CO | Injection | 2,500 | -- | 4,159–4,178 |
| Active | BUCK, I. G. W. #3 R | 42-391-31450 | BENT WING ENERGY, LLC | Injection | 2,000 | -- | 3,630–4,100 |
| Active | O'CONNOR, THOMAS, "D" #3 | 42-391-01795 | HILCORP ENGY CO | Disposal | 2,000 | -- | 3,700–4,020 |
| Active | BARBER #6 D | 42-391-31364 | 2 D OIL & GAS LLC | Disposal | 1,000 | -- | 3,590–3,650 |
| Active | ROCHE #6 | 42-391-32866 | SALIDA EXPL, LLC | Disposal | 800 | -- | 5,300–5,330 |
| Active | LAMBERT, M. F. #A 8 | 42-391-01213 | HILCORP ENGY CO | Disposal | 750 | -- | 3,600–3,930 |
| Active | HYNES #3D | 42-391-81510 | MAGNUM PRODUCING & OPER CO | Disposal | 750 | -- | 2,028–2,038 |
| Active | WILLIAMS, MAUDE, ETAL -A- #D142 | 42-391-31789 | HILCORP ENGY CO | Injection | 0 | -- | 4,427–4,443 |
| Active | WLP #4 | 42-391-00401 | T-C OIL CO, LLC | Injection | 0 | -- | 4,468–4,512 |
| Active | WLP #1 | 42-391-32192 | T-C OIL CO, LLC | Injection | 0 | -- | 4,483–4,524 |
| Active | WILLIAMS, MAUDE, ETAL -A- #36 | 42-391-00444 | HILCORP ENGY CO | Disposal | 0 | -- | 2,950–3,415 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #Q085 E | 42-391-01552 | HILCORP ENGY CO | Injection | 0 | -- | 5,833–5,890 |
| Active | WILLIAMS, MAUDE, ETAL -A- #D 62 | 42-391-30229 | HILCORP ENGY CO | Injection | 0 | -- | 4,396–4,462 |
| Active | WLP #G 9 | 42-391-32262 | T-C OIL CO, LLC | Injection | 0 | -- | 4,476–4,518 |
| Active | OCONNOR, DENNIS, ETAL -L- #L 30 | 42-391-00326 | T-C OIL CO, LLC | UIC | 0 | -- | 4,460–4,473 |
| Active | MAUDE WILLIAMS ET AL "A" #D 2G | 42-391-00299 | HILCORP ENGY CO | Disposal | 20,000 | -- | 2,810–3,440 |
| Active | O'CONNOR, THOMAS "A" #24 | 42-391-01514 | HILCORP ENGY CO | Injection | 15,000 | -- | 4,410–4,776 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #C412 | 42-391-01635 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,550–4,200 |
| Active | MAUDE WILLIAMS ET AL 'A' #52 | 42-391-00451 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,380–5,460 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #H084 | 42-391-01370 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,885–5,901 |
| Active | TOM O'CONNOR(5600 FOOT SAND)UNIT #W311OB | 42-391-31890 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,150–5,700 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #H057 | 42-391-01336 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,824–5,869 |
| Active | HEARD, CLEMENT #20 | 42-391-30191 | HILCORP ENGY CO | Disposal | 10,000 | -- | 2,800–4,030 |
| Active | TOM OCONNOR (5800 SD) FLD. UNIT #Q029 | 42-391-01544 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,790–5,940 |
| Active | WILLIAMS, MAUDE ETAL -A- #D 99 | 42-391-31737 | HILCORP ENGY CO | Injection | 8,000 | -- | 4,510–4,530 |
| Active | HEARD, FANNIE V. W., MRS. #59 | 42-391-00708 | HILCORP ENGY CO | Injection | 6,000 | -- | 4,397–4,447 |
| Active | T-C OIL CO.- O'CONNOR #46 | 42-391-30026 | T-C OIL CO, LLC | Injection | 0 | -- | 4,431–4,451 |
| Plugged | OBRIEN, J. J., -A- #3 | 42-391-00784 | GRETA OPER CO LLC | Injection | 25,000 | 664,629 | 4,350–4,362 |
| Plugged | TOM O'CONNOR (5730 FT. SD.) UNIT #A 58 | 42-391-00454 | HILCORP ENGY CO | Injection | 10,000 | 155,701 | 5,710–5,780 |
| Inactive | ROCHE SWD #1 | 42-391-00000 | PALOMA OPER, LLC | Injection | 25,000 | -- | 4,600–4,900 |
| Inactive | OCONNOR, THOMAS, -A- #121 | 42-391-32947 | HILCORP ENGY CO | Injection | 20,000 | -- | 6,007–7,154 |
| Inactive | MAUDE WILLIAMS ET AL 'A' #D200 | 42-391-32597 | HILCORP ENGY CO | Injection | 15,000 | -- | 5,600–7,200 |
| Inactive | OCONNOR, THOMAS, -A- #2 | 42-391-01532 | HILCORP ENGY CO | Injection | 15,000 | -- | 4,400–5,750 |
| Inactive | O'CONNOR, THOMAS "C" #4G | 42-391-01159 | HILCORP ENGY CO | Injection | 15,000 | -- | 4,450–4,850 |
| Inactive | FOX, W. J. "A" #A40 | 42-391-01306 | HILCORP ENGY CO | Disposal | 10,000 | -- | 1,740–1,810 |
| Inactive | TOM OCONNOR (5800 SD) FLD. UNIT #Q445 | 42-391-33182 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,170–5,970 |
| Inactive | FAGAN C #C 12 | 42-391-32784 | ALLEGIANT RES, LLC | Injection | 10,000 | -- | 4,460–4,665 |
| Inactive | TOM OCONNOR (5800 SD) FLD. UNIT #Q106E | 42-391-02036 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,890–5,990 |
| Inactive | LAMBERT, M. F. #123 U | 42-391-01401 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,600–5,630 |
| Inactive | TOM OCONNOR (5800 SD) FLD. UNIT #Q097E | 42-391-01579 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,860–5,960 |
| Inactive | TOM OCONNOR (5800 SD) FLD. UNIT #99 | 42-391-02033 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,870–5,970 |
| Inactive | OCONNOR, THOMAS, -C- #38 | 42-391-01152 | HILCORP ENGY CO | Injection | 6,000 | -- | 4,410–4,475 |
| Inactive | TOM O'CONNOR(5600 FOOT SAND)UNIT #W403GB | 42-391-00556 | HILCORP ENGY CO | Injection | 6,000 | -- | 5,575–5,615 |
| Plugged | TOM O'CONNOR(5800 SD) FIELD UNIT #Q870 | 42-391-00460 | HILCORP ENGY CO | Disposal | 5,000 | -- | 3,270–3,300 |
| Inactive | HEARD, FANNIE V. W. #17 | 42-391-00836 | DORCHESTER OPERATING COMPANY LLC | Injection | 5,000 | -- | 4,300–4,500 |
| Plugged | HEARD, F. V. W. #37 | 42-391-32595 | DORCHESTER OPERATING COMPANY LLC | Injection | 5,000 | -- | 4,300–4,500 |
| Inactive | HEARD, FANNIE V. W. #34 | 42-391-32478 | DORCHESTER OPERATING COMPANY LLC | Injection | 5,000 | -- | 4,300–4,500 |
| Inactive | TOM O'CONNOR (4150 FT. SD.) UNIT #W227A | 42-391-01171 | HILCORP ENGY CO | Injection | 5,000 | -- | 4,070–4,130 |
| Inactive | TOM O'CONNOR (4150 FT. SD.) UNIT #W345A | 42-391-00567 | HILCORP ENGY CO | Injection | 5,000 | -- | 4,090–4,150 |
| Inactive | TOM O'CONNOR (4150 FT. SD.) UNIT #W877A | 42-391-00466 | HILCORP ENGY CO | Injection | 3,000 | -- | 3,990–4,225 |
| Inactive | TOM O'CONNOR (4150 FT. SD.) UNIT #W305GA | 42-391-00726 | HILCORP ENGY CO | Injection | 3,000 | -- | 4,080–4,105 |
| Cancelled | OCONNOR, THOMAS, -A- #1 | 42-391-00000 | QUINTANA PET. CORP | UIC | 50,000 | -- | 6,500–6,800 |
| Inactive | LAMBERT, M. F. #99A | 42-391-01440 | HILCORP ENGY CO | Injection | 37,498 | -- | 4,410–4,850 |
| Cancelled | TOM OCONNOR (5800 SD) FLD. UNIT #P141 | 42-391-30588 | QUINTANA PET. CORP | Injection | 25,000 | -- | 6,580–6,675 |
| Cancelled | LAMBERT, M. F. #141 | 42-391-30588 | PENNZOIL EXPL & PROD. CO | Injection | 25,000 | -- | 6,580–6,675 |
| Cancelled | MAUDE WILLIAMS ET AL #D24 | 42-391-00352 | HILCORP ENGY CO | Injection | 25,000 | -- | 3,670–4,025 |
| Inactive | WELDER FORD #4 | 42-391-33055 | DALLAS PETRO GROUP, LLC | Injection | 25,000 | -- | 4,800–5,600 |
| Cancelled | WILLIAMS, MAUDE ET AL "A" #D 3G | 42-391-00220 | HILCORP ENGY CO | Disposal | 20,000 | -- | 3,000–4,000 |
| Inactive | LAMBERT, M. F. #66 | 42-391-01323 | HILCORP ENGY CO | Disposal | 20,000 | -- | 3,630–4,120 |
| Cancelled | LAMBERT, M. F. #52 | 42-391-01430 | HILCORP ENGY CO | Injection | 20,000 | -- | 4,950–5,770 |
| Inactive | WILLIAMS, MAUDE ET AL -C- #10 | 42-391-33036 | HILCORP ENGY CO | Injection | 20,000 | -- | 5,800–5,894 |
| Inactive | WILLIAMS, MAUDE ET AL "A" #D 1G | 42-391-00298 | HILCORP ENGY CO | Disposal | 20,000 | -- | 2,810–3,620 |
| Plugged | LAMBERT, M. F. #111 | 42-391-01355 | HILCORP ENGY CO | Disposal | 20,000 | -- | 2,750–3,100 |
| Cancelled | MARBERRY A #7D | 42-391-33194 | FROSTWOOD ENGY, LLC | Injection | 20,000 | -- | 3,690–4,800 |
| Plugged | HEARD, FANNIE V. W. #3 | 42-391-00790 | YOUNGBLOOD, C. S. III | Disposal | 17,000 | -- | 3,517–3,800 |
| Plugged | HEARD, FANNIE V. W., MRS. #61 | 42-391-00709 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,639–3,670 |
| Plugged | OCONNOR, THOMAS -A- #72 | 42-391-01527 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,260–3,876 |
| Plugged | LAMBERT, M. F. #1 | 42-391-82065 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,690–4,000 |
| Cancelled | MAUDE WILLIAMS ET AL "A" #D162 | 42-391-32115 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,030–3,970 |
| Cancelled | LAMBERT, M. F. #31 | 42-391-01232 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,675–4,020 |
| Plugged | OBRIEN, J. M., -D- #1WI | 42-391-00917 | CHILTON ENGY | Disposal | 15,000 | -- | 2,696–2,748 |
| Inactive | MAUDE WILLIAMS ET AL "A" #D146 | 42-391-31791 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,600–4,000 |
| Inactive | WILLIAMS, MAUDE, ETAL -A- #D158 | 42-391-32037 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,600–4,000 |
| Inactive | WILLIAMS, MAUDDE ET AL "A" #D 27 | 42-391-30175 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,600–4,010 |
| Plugged | O'CONNOR, THOMAS "A" #82 | 42-391-02026 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,650–4,000 |
| Inactive | TOM O'CONNOR (4150 FT. SD.) UNIT #W377A | 42-391-03794 | HILCORP ENGY CO | Disposal | 15,000 | -- | 3,500–4,000 |
| Plugged | MARBERRY #25 | 42-391-33122 | ALLEGIANT RES, LLC | Injection | 15,000 | -- | 3,700–4,850 |
| Plugged | OBRIEN, J. M., -C- #5 | 42-391-00994 | CHILTON ENGY | Disposal | 15,000 | -- | 2,740–2,790 |
| Cancelled | O'CONNOR, THOMAS "A" #10D | 42-391-01503 | HILCORP ENGY CO | Disposal | 12,000 | -- | 3,500–4,100 |
| Plugged | OCONNOR, THOMAS -A- #96 | 42-391-01556 | HILCORP ENGY CO | Disposal | 12,000 | -- | 3,000–3,650 |
| Plugged | ROOKE. B.D. #33 | 42-391-03384 | LAROCO LLP | Disposal | 12,000 | -- | 4,500–6,300 |
| Plugged | OBRIEN, J. M. -B- #207 F | 42-391-01025 | YOUNGBLOOD, C. S. III | Disposal | 11,000 | -- | 1,868–1,920 |
| Plugged | OBRIEN, J. M. -B- #207 H | 42-391-01025 | YOUNGBLOOD, C. S. III | Disposal | 11,000 | -- | 1,868–1,920 |
| Plugged | OCONNOR, THOMAS JAMES -C- #11 | 42-391-01973 | YOUNGBLOOD, C. S. III | Disposal | 11,000 | -- | 3,590–3,992 |
| Plugged | OCONNOR, MARY ELLEN -B- #1 | 42-391-01875 | YOUNGBLOOD, C. S. III | Disposal | 11,000 | -- | 3,595–3,980 |
| Cancelled | WILLIAMS, MAUDE, ETAL -B- #4W | 42-391-00504 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,610–5,645 |
| Plugged | HEARD, J. F. B. #3 | 42-391-00862 | YOUNGBLOOD, C. S. III | Injection | 10,000 | -- | 3,100–3,195 |
| Cancelled | THOMAS O'CONNOR 'C' #44 | 42-391-01130 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,000–5,710 |
| Inactive | WILLIAMS, MAUDE ET AL "A" #D130 | 42-391-31778 | HILCORP ENGY CO | Disposal | 10,000 | -- | 3,660–3,985 |
| Cancelled | TOM O'CONNOR "A" #37 | 42-391-01515 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,150–5,635 |
| Inactive | OCONNOR, DENNIS, ETAL -L- #L 72 | 42-391-32539 | T-C OIL CO, LLC | Injection | 10,000 | -- | 4,482–4,700 |
| Cancelled | WILLIAMS, MAUDE ET AL -A- #4 | 42-391-00418 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,757–5,777 |
| Plugged | TOM OCONNOR (5800 SD) FLD. UNIT #Q328 | 42-391-00694 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,000–5,725 |
| Cancelled | TOM O'CONNOR(5600 FOOT SAND)UNIT #3100WB | 42-391-31577 | HILCORP ENGY CO | Injection | 10,000 | -- | 5,530–5,580 |
| Cancelled | TOM OCONNOR (5800 SD) FLD. UNIT #Q237 | 42-391-01151 | QUINTANA PET. CORP | Injection | 10,000 | -- | 5,738–5,754 |
| Plugged | OCONNOR, DENNIS, ETAL -L- #L 71 | 42-391-32538 | T-C OIL CO, LLC | Injection | 10,000 | -- | 4,492–4,700 |
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.