Saltwater Disposal Wells in Starr County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
49
Permitted Capacity
193,150 bbl/d
Injected 12mo (thru 2025-06)
4.2M bbl
UIC Permits All Time
424
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Plugged | SAN ROMAN,E (HCLY) WTRFLD UNT #F 6 | 42-427-32154 | EXXON MOBIL CORP | Injection | 800 | -- | 3,740–3,775 |
| Plugged | VILLARREAL #9 | 42-427-00393 | WAGNER OIL CO | Disposal | 800 | -- | 4,268–4,713 |
| Plugged | SAN ROMAN,E (HCLY) WTRFLD UNT #B 58 | 42-427-32025 | YOUNGBLOOD, C. S. III | Injection | 800 | -- | 3,741–3,749 |
| Plugged | SAENZ, M.-STATE #20 | 42-427-04529 | SUN EXPL. & PROD. CO.-HOUSTON | Disposal | 800 | -- | 4,770–4,787 |
| Plugged | MARTINEZ -A- #1 | 42-427-31897 | GOLDKING PROD. CO | Disposal | 750 | -- | 3,950–4,022 |
| Plugged | VILLARREAL #19W | 42-427-00304 | ENGY DEV CORP | Injection | 750 | -- | 6,475–6,488 |
| Plugged | MCGILL BROS. #131 C | 42-427-00295 | HUMBLE OIL & REFINING CO. | UIC | 725 | -- | 5,941–5,952 |
| Plugged | MCGILL BROS. #102 | 42-427-00290 | HUMBLE OIL & REFINING CO. | UIC | 725 | -- | 5,982–5,991 |
| Plugged | MCGILL BROS. #125 | 42-427-00297 | HUMBLE OIL & REFINING CO. | UIC | 725 | -- | 5,961–5,971 |
| Plugged | FRIO D-5 UNIT #37 | 42-427-30386 | CONOCO INC | UIC | 700 | -- | 3,793–3,829 |
| Plugged | FRIO D-5 UNIT #40 | 42-427-81186 | CONOCO INC | UIC | 700 | -- | 3,896–3,930 |
| Plugged | FRIO E-3 UNIT #73 | 42-427-80982 | CONOCO INC | UIC | 700 | -- | 3,924–3,940 |
| Plugged | FRIO D-5 UNIT #25 | 42-427-01615 | CONTINENTAL OIL CO | UIC | 700 | -- | 3,859–3,867 |
| Plugged | FRIO D-5 UNIT #64 | 42-427-01609 | CONSOLIDATED OIL & GAS, INC | Injection | 700 | -- | 3,872–3,923 |
| Plugged | FIRST NATIONAL BANK OF MISSION #8 | 42-427-00418 | ENGY DEV CORP | Injection | 700 | -- | 6,405–6,438 |
| Plugged | FRIO D-5 UNIT #60 | 42-427-01582 | CONTINENTAL OIL CO | Injection | 700 | -- | 3,874–3,878 |
| Plugged | FRIO D-5 UNIT #11 | 42-427-01484 | CONTINENTAL OIL CO | UIC | 700 | -- | 3,870–3,903 |
| Cancelled | FRIO D-5 UNIT #38 | 42-427-00000 | CONTINENTAL OIL CO | UIC | 700 | -- | 3,795–3,805 |
| Plugged | SLICK-STATE #2 C | 42-427-03827 | CTR PETRO, INC | Disposal | 633 | -- | 4,744–4,754 |
| Plugged | ZACHRY, H. B., ETAL #4 | 42-427-02368 | DUGGER, GLENN | UIC | 600 | -- | 670–674 |
| Plugged | HINOJOSA, MEDARDO -B- ROY. A/C#2 #12 | 42-427-02941 | WHITE OAK OPER CO LLC | Injection | 600 | -- | 1,367–1,385 |
| Plugged | COATES ESTATE #3 | 42-427-31389 | HARKINS & CO | Disposal | 600 | -- | 3,508–3,550 |
| Plugged | SLICK, T. B., ESTATE -A- #3 | 42-427-01467 | CONOCO INC | Injection | 600 | -- | 4,040–4,072 |
| Plugged | SLICK, T. B. -B- EST. #1 | 42-427-00000 | CONOCO INC | Injection | 600 | -- | 4,026–4,077 |
| Cancelled | FRIO E UNIT -A- #9 | 42-427-80905 | CONTINENTAL OIL CO | UIC | 600 | -- | 3,980–4,022 |
| Plugged | YTURRIA L&L -A- #3 | 42-427-03929 | SANCHEZ-O'BRIEN OIL & GAS CORP | Injection | 600 | -- | 4,207–4,215 |
| Plugged | FRIO E UNIT -B- #45 | 42-427-01574 | CONTINENTAL OIL CO | UIC | 600 | -- | 3,784–3,800 |
| Plugged | SLICK, T. B. -B- EST. #34 | 42-427-01603 | CONOCO INC | Injection | 600 | -- | 4,080–4,450 |
| Plugged | CAMERON #14 | 42-427-32304 | CAMERON, PAUL E., JR., INC | Injection | 600 | -- | 4,554–4,570 |
| Plugged | SLICK, T. B. -B- EST. #32 | 42-427-01565 | CONOCO INC | UIC | 600 | -- | 4,090–4,115 |
| Plugged | SLICK, T. B. -B- EST. #28 | 42-427-01516 | CONOCO INC | Injection | 600 | -- | 4,044–4,099 |
| Plugged | SLICK, T. B. -B- EST. #27 | 42-427-01461 | CONOCO INC | Injection | 600 | -- | 4,073–4,088 |
| Plugged | HINOJOSA, MEDARDO -B- ROY. A/C#1 #25B | 42-427-02954 | WHITE OAK OPER CO LLC | Injection | 600 | -- | 1,381–1,389 |
| Plugged | SLICK, T. B. -B- EST. #23 | 42-427-01513 | CONOCO INC | Injection | 600 | -- | 4,030–4,081 |
| Plugged | HINOJOSA, MEDARDO -B- ROY. A/C#1 #19B | 42-427-02948 | ORPHAN WELLS, LLC | Injection | 600 | -- | 1,375–1,384 |
| Plugged | HINOJOSA, MEDARDO -B- ROY. A/C#1 #20B | 42-427-02949 | WHITE OAK OPER CO LLC | Injection | 600 | -- | 1,370–1,380 |
| Plugged | FRIO E-3 UNIT #81 | 42-427-30124 | CONOCO INC | UIC | 600 | -- | 3,860–3,879 |
| Plugged | SLICK, T. B. -B- EST. #22 | 42-427-00000 | CONOCO INC | Injection | 600 | -- | 4,042–4,090 |
| Plugged | SLICK, T. B., ESTATE -A- #110 | 42-427-01487 | CONOCO INC | Injection | 600 | -- | 4,195–4,209 |
| Cancelled | FRIO E UNIT -A- #13 | 42-427-00000 | CONTINENTAL OIL CO | UIC | 600 | -- | 3,928–3,926 |
| Plugged | SLICK, T. B., ESTATE -A- #108 | 42-427-01485 | CONOCO INC | Injection | 600 | -- | 3,654–4,116 |
| Plugged | SLICK, T. B., ESTATE -A- #106 | 42-427-00000 | CONOCO INC | Injection | 600 | -- | 4,128–4,141 |
| Plugged | SLICK, T. B., ESTATE -A- #104 | 42-427-01481 | CONOCO INC | Injection | 600 | -- | 4,066–4,082 |
| Plugged | SLICK, T. B., ESTATE -A- #66 | 42-427-01480 | CONOCO INC | Injection | 600 | -- | 4,102–4,148 |
| Cancelled | FRIO E UNIT -B- #600 U | 42-427-00000 | CONTINENTAL OIL CO | UIC | 600 | -- | 3,957–3,972 |
| Plugged | COATES MINERALS #3 | 42-427-01232 | SAMSON LONE STAR LP | Disposal | 600 | -- | 3,508–3,550 |
| Plugged | SLICK, T. B., ESTATE -A- #14 | 42-427-01477 | CONOCO INC | Injection | 600 | -- | 4,095–4,108 |
| Cancelled | FRIO E UNIT -A- #109 M | 42-427-01486 | CONTINENTAL OIL CO | UIC | 600 | -- | 3,924–3,934 |
| Plugged | SLICK, T. B. -B- EST. #113 | 42-427-00000 | CONOCO INC | Injection | 600 | -- | 4,140–4,172 |
| Plugged | SLICK, T. B. -B- EST. #133 | 42-427-01594 | CONOCO INC | Injection | 600 | -- | 4,095–4,114 |
| Plugged | DAVENPORT, F. D. -A- #1 U | 42-427-01597 | CONTINENTAL OIL CO | Injection | 600 | -- | 4,026–4,077 |
| Plugged | DAVENPORT, F. D. -A- #2 | 42-427-81237 | CONTINENTAL OIL CO | UIC | 600 | -- | 4,070–4,091 |
| Plugged | SLICK, T. B. -B- EST. #60 | 42-427-01606 | CONOCO INC | Injection | 600 | -- | 4,196–4,208 |
| Plugged | SLICK, T. B., ESTATE -A- #4 | 42-427-01468 | CONOCO INC | Injection | 600 | -- | 4,050–4,075 |
| Plugged | SLICK, T. B. -B- EST. #46 | 42-427-01604 | CONOCO INC | Injection | 600 | -- | 4,042–4,090 |
| Plugged | CAMILO-GARZA ETAL #3 | 42-427-02397 | DUGGER, GLENN | UIC | 500 | -- | 760 |
| Plugged | FRIO E UNIT -B- #157 U | 42-427-30164 | CONOCO INC | UIC | 500 | -- | 3,836–3,866 |
| Plugged | FRIO D-5 UNIT #10 | 42-427-01481 | CONOCO INC | Injection | 500 | -- | 3,809–3,855 |
| Plugged | FRIO D-5 UNIT #20 | 42-427-01567 | CONOCO INC | UIC | 500 | -- | 3,808–3,818 |
| Plugged | FRIO D-5 UNIT #29 | 42-427-01554 | CONOCO INC | UIC | 500 | -- | 3,716–3,772 |
| Plugged | FRIO D-5 UNIT #33 | 42-427-01589 | CONOCO INC | UIC | 500 | -- | 3,748–3,805 |
| Plugged | FRIO D-5 UNIT #41 | 42-427-81187 | CONOCO INC | UIC | 500 | -- | 3,768–3,781 |
| Plugged | FRIO D-5 UNIT #48 | 42-427-01617 | CONOCO INC | UIC | 500 | -- | 3,808–3,828 |
| Plugged | FRIO D-5 UNIT #49 | 42-427-01581 | CONOCO INC | UIC | 500 | -- | 3,840–3,850 |
| Plugged | FRIO D-5 UNIT #50 | 42-427-01613 | CONOCO INC | UIC | 500 | -- | 3,846–3,858 |
| Plugged | FRIO D-5 UNIT #52 | 42-427-01472 | CONOCO INC | UIC | 500 | -- | 3,837–3,852 |
| Plugged | SLICK, T.B., ESTATE -A- #1 | 42-427-30293 | TENNECO OIL CO | Disposal | 500 | -- | 2,320–2,400 |
| Plugged | ALVAREZ, CORNELIO #13 | 42-427-02418 | ALVAREZ & ALVAREZ | UIC | 500 | -- | 670–674 |
| Plugged | ALVAREZ, CORNELIO #18 | 42-427-02423 | DUGGER, GLENN | UIC | 500 | -- | 714–720 |
| Plugged | ALVAREZ, CORNELIO #10 | 42-427-02415 | ALVAREZ & ALVAREZ | UIC | 500 | -- | 649–653 |
| Plugged | ALVAREZ, CORNELIO #12 | 42-427-02417 | ALVAREZ & ALVAREZ | UIC | 500 | -- | 662–665 |
| Plugged | GUERRA, H.P. GAS UNIT #1 #1 | 42-427-01931 | MCRAE, NATHAN D. | Disposal | 500 | -- | 2,200–2,210 |
| Plugged | GUERRA, H.P. GAS UNIT #1 #1 | 42-427-01931 | MCRAE, NATHAN D. | Disposal | 500 | -- | 2,200–2,210 |
| Plugged | VILLARREAL #5 | 42-427-00389 | WAGNER OIL CO | Injection | 500 | -- | 6,050–6,064 |
| Plugged | ALVAREZ, CORNELIO #16 | 42-427-02421 | ALVAREZ & ALVAREZ | UIC | 500 | -- | 714–717 |
| Plugged | WOOD, D. G., SR., -C- #6 | 42-427-02986 | POOR BOY OILFIELD SERVICE | Injection | 500 | -- | 1,420–1,430 |
| Plugged | URSCHEL, C.F. #5 | 42-427-32427 | MERIT ENGY CO | Disposal | 500 | -- | 3,780–3,910 |
| Cancelled | SUN FIELD WATERFLOOD UNIT NO. 1 #1W | 42-427-00567 | REH ENGY, INC | Injection | 500 | -- | 4,856–4,868 |
| Plugged | DE GARZA, J. M. #7 | 42-427-00351 | RESERVE OPER CORP | Disposal | 500 | -- | 4,637–4,706 |
| Plugged | CAMILO-GARZA ETAL #2 | 42-427-02396 | DUGGER, GLENN | UIC | 500 | -- | 760 |
| Plugged | CAMILO-GARZA ETAL #8 | 42-427-02402 | DUGGER, GLENN | UIC | 500 | -- | 744–750 |
| Cancelled | B. G. DE GARCIA #21 | 42-427-00000 | SUNOCO OPERATIONS, INC. | UIC | 500 | -- | 4,280–4,287 |
| Plugged | MCKIM-ALVAREZ #1 | 42-427-04050 | HOPE, ALVIN C. ESTATE OF | UIC | 500 | -- | 4,147–4,152 |
| Plugged | CAMILO-GARZA ETAL #1 | 42-427-02430 | DUGGER, GLENN | UIC | 500 | -- | 762 |
| Cancelled | FRIO D-5 UNIT #51 | 42-427-00000 | CONTINENTAL OIL CO | UIC | 500 | -- | 3,840–3,878 |
| Cancelled | GARCIA, M. M. -B- #10 | 42-427-03583 | CONTINENTAL OIL CO | UIC | 500 | -- | 3,679–3,684 |
| Cancelled | VILLARREAL #1 | 42-427-00947 | OSBORN, W. B. OPERATOR | Injection | 400 | -- | 5,080–5,118 |
| Plugged | ORIVE, A. -A- #2 | 42-427-03908 | STARCO EXPL, INC | UIC | 400 | -- | 4,145–4,147 |
| Plugged | CARDENAS #2 | 42-427-30181 | PETROTEX MANAGEMENT CO | Disposal | 400 | -- | 2,650–3,103 |
| Plugged | EAST, ALICE K., MRS. #6 | 42-427-80020 | YOUNGBLOOD, C. S. III | Disposal | 350 | -- | 3,088–3,150 |
| Plugged | SLICK, T. B. -B- EST. #90 | 42-427-03551 | CONOCO INC | Injection | 300 | -- | 3,660–3,670 |
| Plugged | CAMERON 137 #1 | 42-427-32438 | SE USA OPER, INC | Injection | 300 | -- | 4,440–4,444 |
| Plugged | HEARD, J. F. B. #8 | 42-427-01202 | RINCON GAS, INC | Injection | 300 | -- | 4,350–4,364 |
| Plugged | CAMERON #2 | 42-427-01161 | OSBORN,W.B. OIL & GAS OPERATIONS | Disposal | 300 | -- | 2,240–2,270 |
| Plugged | MARRS-MCLEAN #13 U | 42-427-05073 | CONTINENTAL OPER CO | Disposal | 300 | -- | 2,760–2,820 |
| Plugged | SUN FIELD WATERFLOOD UNIT NO. 1 #16 | 42-427-30170 | REH ENGY, INC | Injection | 300 | -- | 4,856–4,868 |
| Plugged | SLICK, T. B. -B- EST. #102 | 42-427-01520 | CONOCO INC | Injection | 275 | -- | 3,704–3,860 |
| Plugged | FRIO D-5 UNIT #8 | 42-427-01557 | CONTINENTAL OIL CO | Injection | 273 | -- | 3,747–3,777 |
| Plugged | D. D. OIL CO. -B- #2 | 42-427-01186 | D.Y. EXPL, INC | Disposal | 250 | -- | 2,150–2,180 |
| Plugged | CANALES, PEDRO #3 | 42-427-80178 | HAND, KENNETH R | UIC | 250 | -- | 1,840–1,846 |
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.