Saltwater Disposal Wells in Terry County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
527
Permitted Capacity
1.5M bbl/d
Injected 12mo (thru 2025-06)
49.4M bbl
UIC Permits All Time
1,052
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Active | PRENTICE NORTHEAST UNIT #271W | 42-445-32007 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #82A | 42-445-00232 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 6,200–7,300 |
| Active | PRENTICE NORTHEAST UNIT #632L | 42-445-31793 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 6,200–7,300 |
| Active | PRENTICE NORTHEAST UNIT #97A | 42-445-00243 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #46W | 42-445-00519 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #97B | 42-445-00230 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #107B | 42-445-30111 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #13 L | 42-445-00561 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #146 L | 42-445-30837 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #93A | 42-445-00290 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #45 U | 42-445-00525 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #26B | 42-445-30014 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,600–7,300 |
| Active | PRENTICE NORTHEAST UNIT #86B | 42-445-00331 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,500–7,300 |
| Active | PRENTICE NORTHEAST UNIT #80B | 42-445-00222 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #266 | 42-445-31465 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #58 U | 42-445-00691 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #19 L | 42-445-00512 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #142U | 42-445-30847 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–6,175 |
| Active | PRENTICE NORTHEAST UNIT #14 W | 42-445-00562 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #5 L | 42-445-00513 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #142L | 42-445-30847 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 6,175–7,300 |
| Active | PRENTICE NORTHEAST UNIT #124A | 42-445-00320 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #88 L | 42-445-30046 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #18 U | 42-445-00347 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #16 U | 42-445-00096 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #57 L | 42-445-00292 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #45 L | 42-445-00525 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #13 U | 42-445-00561 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #52A | 42-445-00312 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #160 | 42-445-31180 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #51A | 42-445-00307 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #5 U | 42-445-00513 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #54 L | 42-445-00306 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #58 L | 42-445-00691 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #17 U | 42-445-00346 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 6,510–7,050 |
| Active | PRENTICE NORTHEAST UNIT #94BW | 42-445-00212 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #114BW | 42-445-00276 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #19 U | 42-445-00512 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #114A | 42-445-00293 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #68 | 42-445-00537 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #25 U | 42-445-00524 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #38 U | 42-445-00518 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #90A | 42-445-10247 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #57 U | 42-445-00292 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #49 U | 42-445-00516 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #76 U | 42-445-00459 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #59B | 42-445-00690 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #88 U | 42-445-30046 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #606U | 42-445-31744 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–6,200 |
| Active | PRENTICE NORTHEAST UNIT #255 | 42-445-31334 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #84A | 42-445-30022 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #695 | 42-445-31802 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #86A | 42-445-30013 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #54 U | 42-445-00306 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #145 U | 42-445-30848 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #632U | 42-445-31793 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #757 | 42-445-31776 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,700–7,300 |
| Active | PRENTICE NORTHEAST UNIT #145 L | 42-445-30848 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | PRENTICE NORTHEAST UNIT #36W | 42-445-00453 | HIGHMARK ENGY OPER, LLC | Injection | 2,500 | -- | 5,750–7,300 |
| Active | ADAIR SAN ANDRES UNIT #907 | 42-445-30158 | HILCORP ENGY CO | Injection | 2,000 | -- | 4,788–4,917 |
| Active | ADAIR WOLFCAMP UNIT #403 | 42-445-00372 | HILCORP ENGY CO | Injection | 2,000 | -- | 8,450–8,700 |
| Active | SB-A #9104 | 42-445-00504 | AVIATOR ENERGY, LLC | Injection | 2,000 | -- | 10,005–10,189 |
| Active | NYSTEL, J. P. "B" #11 | 42-445-32354 | R3 OPERATING CORPORATION | Injection | 2,000 | -- | 4,832–4,868 |
| Active | ADAIR SAN ANDRES UNIT #904 | 42-445-00042 | HILCORP ENGY CO | Injection | 2,000 | -- | 4,774–4,917 |
| Active | HELEN #1 | 42-445-31805 | R3 OPERATING CORPORATION | Injection | 1,500 | -- | 7,150–8,150 |
| Active | NORTHWEST TERRY (ABO) UNIT #311 | 42-445-32337 | R3 OPERATING CORPORATION | Injection | 1,500 | -- | 7,500–8,100 |
| Active | MALLET LAND & CATTLE COMPANY #10W | 42-445-00258 | CROSS TIMBERS ENGY, LLC | Injection | 1,500 | -- | 4,600–5,034 |
| Active | GRACEY, H. C. #5 | 42-445-32359 | R3 OPERATING CORPORATION | Injection | 1,500 | -- | 7,600–8,139 |
| Active | NORTHWEST TERRY (ABO) UNIT #403 | 42-445-32345 | R3 OPERATING CORPORATION | Injection | 1,500 | -- | 7,500–8,105 |
| Active | MORGENSTERN, PAULINE H. #2 | 42-445-30690 | EXTEX OPER CO | Injection | 1,000 | -- | 6,614–6,842 |
| Active | CENTRAL GLORIETA UNIT #9 | 42-445-00605 | OCCIDENTAL PERMIAN LTD | Injection | 1,000 | -- | 5,800–6,050 |
| Active | WELLMAN SW. SAN ANDRES UNIT #25 | 42-445-30665 | REIN PUSHER OPER LLC | Injection | 1,000 | -- | 5,487–5,509 |
| Active | MALLET LAND & CATTLE COMPANY #14W | 42-445-00262 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 5,000–5,069 |
| Active | COONS, W. A. #33W | 42-445-30581 | HILCORP ENGY CO | Injection | 1,000 | -- | 7,600–8,100 |
| Active | WELCH NORTH UNIT #1602W | 42-445-00498 | WHITE ROCK OIL & GAS, LLC | Injection | 1,000 | -- | 4,650–4,928 |
| Active | MALLET LAND & CATTLE COMPANY #108 | 42-445-31828 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 4,206–5,065 |
| Active | CENTRAL GLORIETA UNIT #4W | 42-445-00391 | OCCIDENTAL PERMIAN LTD | UIC | 1,000 | -- | 5,896–5,977 |
| Active | PRENTICE NORTHEAST UNIT #163 | 42-445-00288 | HIGHMARK ENGY OPER, LLC | Disposal | 750 | -- | 2,098–2,138 |
| Active | WARHORSE (CLEARFORK, UP.) UNIT #902 | 42-445-00271 | EXTEX OPER CO | Injection | 600 | -- | 6,624–6,808 |
| Active | MULDROW UNIT #14Y | 42-445-32093 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 5,200–5,378 |
| Active | JACKSON (CLEARFORK) UNIT #20 | 42-445-30922 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,655–6,800 |
| Active | MULDROW UNIT #21 | 42-445-31152 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 5,250–5,355 |
| Active | JACKSON (CLEARFORK) UNIT #28 | 42-445-32061 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,500–6,800 |
| Active | JACKSON (CLEARFORK) UNIT #22 | 42-445-30955 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,550–6,800 |
| Active | JACKSON (CLEARFORK) UNIT #17 | 42-445-30872 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,550–6,800 |
| Active | JACKSON (CLEARFORK) UNIT #8 | 42-445-31830 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,521–6,800 |
| Active | JACKSON (CLEARFORK) UNIT #5 | 42-445-31670 | CROSS TIMBERS ENGY, LLC | Injection | 550 | -- | 6,500–6,800 |
| Active | WELCH NORTH UNIT #1610W | 42-445-30122 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,844–4,888 |
| Active | WELLMAN WEST UNIT #17 | 42-445-10239 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 5,490–5,650 |
| Active | WELLMAN WEST UNIT #12W | 42-445-30316 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 5,490–5,650 |
| Active | WELCH NORTH UNIT #1705 | 42-445-31215 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,913–4,930 |
| Active | REESE CLEVELAND #8W | 42-445-30652 | BCE-MACH III LLC | Injection | 500 | -- | 7,722–8,006 |
| Active | WELCH NORTH UNIT #502 | 42-445-30220 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,879–4,916 |
| Active | WELLMAN WEST UNIT #7 | 42-445-10216 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 5,490–5,650 |
| Active | WELCH NORTH UNIT #3303W | 42-445-10029 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,904–4,945 |
| Active | WELCH NORTH UNIT #1617 | 42-445-30218 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,861–4,906 |
| Active | WELCH NORTH UNIT #1901W | 42-445-00167 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,912–4,954 |
| Active | WELCH NORTH UNIT #2807W | 42-445-30181 | WHITE ROCK OIL & GAS, LLC | UIC | 500 | -- | 4,834–4,881 |
| Active | WELCH NORTH UNIT #1802W | 42-445-00160 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,906–4,923 |
| Active | WELCH NORTH UNIT #1607W | 42-445-00127 | WHITE ROCK OIL & GAS, LLC | Injection | 500 | -- | 4,880–4,893 |
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.