Saltwater Disposal Wells in Montgomery County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
64
Permitted Capacity
1.2M bbl/d
Injected 12mo (thru 2025-06)
56.1M bbl
UIC Permits All Time
252
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Inactive | CONROE FIELD UNIT #519D | 42-339-31088 | HIGHMARK ENGY OPER, LLC | Injection | 25,000 | -- | 4,600–6,300 |
| Plugged | CONROE FIELD UNIT #70D | 42-339-01274 | EXXON MOBIL CORP | Injection | 25,000 | -- | 2,400–3,940 |
| Inactive | MOORE, H. N. #46 | 42-339-01489 | HIGHMARK ENGY OPER, LLC | Injection | 25,000 | -- | 4,732–5,180 |
| Plugged | CONROE FIELD UNIT #88D | 42-339-30122 | DENBURY ONSHORE, LLC | Injection | 25,000 | -- | 2,500–4,104 |
| Plugged | CONROE FIELD UNIT #67D | 42-339-01380 | EXXON MOBIL CORP | Injection | 25,000 | -- | 2,400–3,940 |
| Plugged | CONROE FIELD UNIT #26D | 42-339-30164 | YOUNGBLOOD, C. S. III | Injection | 25,000 | -- | 2,500–3,925 |
| Plugged | CONROE FIELD UNIT #65D | 42-339-01246 | YOUNGBLOOD, C. S. III | Injection | 25,000 | -- | 2,400–4,000 |
| Inactive | CONROE FIELD UNIT #98D | 42-339-30647 | HIGHMARK ENGY OPER, LLC | Injection | 25,000 | -- | 2,400–4,100 |
| Inactive | CONROE FIELD UNIT #105D | 42-339-30567 | HIGHMARK ENGY OPER, LLC | Injection | 25,000 | -- | 2,400–4,020 |
| Plugged | CONROE FIELD UNIT #37D | 42-339-00570 | YOUNGBLOOD, C. S. III | Injection | 25,000 | -- | 3,030–3,300 |
| Plugged | CONROE FIELD UNIT #38D | 42-339-01291 | EXXON MOBIL CORP | Injection | 25,000 | -- | 2,900–3,800 |
| Plugged | CONROE FIELD UNIT #39D | 42-339-01300 | EXXON MOBIL CORP | Injection | 25,000 | -- | 2,500–3,300 |
| Inactive | CONROE FIELD UNIT #4013 | 42-339-30208 | HIGHMARK ENGY OPER, LLC | Injection | 24,500 | -- | 2,675–5,300 |
| Inactive | CONROE FIELD UNIT #1115 | 42-339-00597 | HIGHMARK ENGY OPER, LLC | Injection | 24,000 | -- | 3,800–5,100 |
| Inactive | CONROE FIELD UNIT #3105 | 42-339-00649 | HIGHMARK ENGY OPER, LLC | Injection | 24,000 | -- | 3,775–5,115 |
| Plugged | CONROE FIELD UNIT #4D | 42-339-00315 | YOUNGBLOOD, C. S. III | Disposal | 20,000 | -- | 2,200–3,800 |
| Plugged | CONROE FIELD UNIT #9D | 42-339-00533 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,090–3,760 |
| Plugged | CONROE FIELD UNIT #7D | 42-339-00487 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 1,960–3,166 |
| Plugged | CONROE FIELD UNIT #28D | 42-339-00809 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,600–3,900 |
| Plugged | CARTWRIGHT, R. L. -A- #14D | 42-339-80309 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,040–3,320 |
| Plugged | MADELEY, A. A. & MADELEY, D. A. #50D | 42-339-80455 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,085–3,032 |
| Cancelled | SOUTH TEXAS DEVELOPMENT CO. -G- #201 | 42-339-80621 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,030–3,800 |
| Cancelled | CONROE FIELD UNIT #81D | 42-339-00461 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,345–4,000 |
| Plugged | CONROE FIELD UNIT #16D | 42-339-01525 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,470–3,296 |
| Cancelled | CONROE FIELD UNIT #93D | 42-339-00000 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,500–4,000 |
| Cancelled | CONROE FIELD UNIT #92D | 42-339-00000 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,500–4,000 |
| Plugged | CONROE FIELD UNIT #23D | 42-339-00650 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 1,960–3,488 |
| Plugged | CONROE FIELD UNIT #87D | 42-339-00000 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,500–4,000 |
| Cancelled | CONROE FIELD UNIT #85D | 42-339-00000 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,500–4,000 |
| Plugged | CONROE FIELD UNIT #15D | 42-339-01861 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,250–3,175 |
| Plugged | CONROE FIELD UNIT #3D | 42-339-00333 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,250–3,170 |
| Plugged | CONROE FIELD UNIT #83 D | 42-339-00576 | YOUNGBLOOD, C. S. III | Disposal | 15,000 | -- | 2,600–3,950 |
| Plugged | CARDINAL WELL SERVICE #1 | 42-339-30650 | CONROE VACUUM TRUCK SERVICE, INC | Disposal | 10,000 | -- | 2,600–3,600 |
| Plugged | CONROE FIELD UNIT #73D | 42-339-81169 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,650–4,000 |
| Plugged | CONROE FIELD UNIT #72D | 42-339-01480 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,400–4,250 |
| Plugged | CONROE FIELD UNIT #71D | 42-339-01328 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,400–4,000 |
| Cancelled | MOORE, H. N. #1 | 42-339-01455 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,550–3,010 |
| Plugged | CONROE FIELD UNIT #68D | 42-339-01273 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,400–3,940 |
| Plugged | CONROE FIELD UNIT #66D | 42-339-01271 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,400–3,940 |
| Cancelled | C. M. DEAN -B- #10 | 42-339-81142 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Cancelled | KEYSTONE MILLS #15 | 42-339-81149 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Cancelled | KEYSTONE MILLS #12 | 42-339-81146 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Plugged | KEYSTONE MILLS #14 | 42-339-01274 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,450–3,940 |
| Cancelled | KEYSTONE MILLS #13 | 42-339-81147 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Plugged | KEYSTONE MILLS #9 | 42-339-01271 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Cancelled | KEYSTONE MILLS #10 | 42-339-81145 | COCKFIELD COMPANY, INC. | Disposal | 10,000 | -- | 2,400–3,940 |
| Plugged | SOUTH TEXAS DEV. CO. FEE -B- #12D | 42-339-80598 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 1,840–3,195 |
| Plugged | CONROE FIELD UNIT #1309 | 42-339-00760 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,030–3,800 |
| Inactive | CONROE FIELD UNIT #507 | 42-339-00469 | HIGHMARK ENGY OPER, LLC | Disposal | 10,000 | -- | 2,300–3,860 |
| Plugged | CONROE FIELD UNIT #12D | 42-339-01473 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,330–3,340 |
| Plugged | CONROE FIELD UNIT #6D | 42-339-00317 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,180–3,800 |
| Plugged | CONROE FIELD UNIT #2D | 42-339-00523 | YOUNGBLOOD, C. S. III | Disposal | 10,000 | -- | 2,380–3,125 |
| Plugged | CONROE FIELD UNIT #34D | 42-339-01545 | YOUNGBLOOD, C. S. III | Disposal | 7,500 | -- | 2,400–3,810 |
| Plugged | GIBBS #1R | 42-339-30759 | BADGER ENGY, INC | Disposal | 7,000 | -- | 2,400–3,742 |
| Plugged | BENDER ESTATE -A- #5D | 42-339-01924 | KP EXPL, INC | Disposal | 6,000 | -- | 2,420–6,200 |
| Cancelled | BENDER UNIT #601 | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,804–5,808 |
| Cancelled | BENDER UNIT #4001 | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,850–5,855 |
| Cancelled | BENDER UNIT #3010 | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,818–5,822 |
| Cancelled | BENDER UNIT #2501 | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,837–5,845 |
| Cancelled | BENDER UNIT #3002C | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,810–5,820 |
| Cancelled | BENDER UNIT #4103 | 42-339-00000 | ATLANTIC RICHFIELD CO.-CORPUS | UIC | 5,700 | -- | 5,843–5,848 |
| Plugged | CONROE FIELD UNIT #69D | 42-339-01379 | YOUNGBLOOD, C. S. III | Disposal | 5,000 | -- | 2,400–3,940 |
| Plugged | M. HARRIS UNIT #1 | 42-339-30551 | GEOSOUTHERN ENGY CORP | Injection | 5,000 | -- | 2,460–5,817 |
| Cancelled | CONROE FIELD UNIT #55D | 42-339-81161 | YOUNGBLOOD, C. S. III | Disposal | 5,000 | -- | 2,400–3,940 |
| Plugged | CONROE FIELD UNIT #43D | 42-339-01350 | YOUNGBLOOD, C. S. III | Disposal | 4,000 | -- | 2,500–4,100 |
| Plugged | BENDER ESTATE -C- #3 | 42-339-01913 | XERIC OIL & GAS CORP | Disposal | 4,000 | -- | 2,700–3,200 |
| Plugged | CONROE FIELD UNIT #14D | 42-339-81153 | YOUNGBLOOD, C. S. III | Disposal | 4,000 | -- | 2,500–4,100 |
| Plugged | CONROE FIELD UNIT #44D | 42-339-01354 | YOUNGBLOOD, C. S. III | Disposal | 4,000 | -- | 2,500–4,100 |
| Plugged | CONROE FIELD UNIT #51D | 42-339-01875 | WHEELER, W. RIDLEY, EST | Disposal | 3,000 | -- | 2,362–3,750 |
| Plugged | CONROE FIELD UNIT #1210I | 42-339-00728 | YOUNGBLOOD, C. S. III | Injection | 3,000 | -- | 5,120–5,141 |
| Plugged | LEWIS, J. W. -A- #2 | 42-339-00362 | GETTY OIL CO | Disposal | 3,000 | -- | 2,510–3,830 |
| Cancelled | CHAMPION #1 D | 42-339-01925 | BISHOP, TRAVIS L | Disposal | 3,000 | -- | 2,900–3,000 |
| Plugged | CONROE FIELD UNIT #32D | 42-339-00365 | YOUNGBLOOD, C. S. III | Disposal | 2,985 | -- | 2,735–3,817 |
| Plugged | CONROE FIELD UNIT #4127 | 42-339-01638 | DENBURY ONSHORE, LLC | UIC | 2,750 | -- | 5,000 |
| Plugged | ST. REGIS #3 D | 42-339-81248 | GOULD OIL INC | Disposal | 2,500 | -- | 2,600–2,700 |
| Plugged | CONROE FIELD UNIT #27D | 42-339-00801 | YOUNGBLOOD, C. S. III | Disposal | 2,500 | -- | 2,000–3,950 |
| Plugged | ST. REGIS #2D | 42-339-80156 | GOULD OIL INC | Disposal | 2,500 | -- | 2,560–2,740 |
| Plugged | FRIENDSWOOD SWD #1D | 42-339-30765 | ECLIPSE SERVICES, INC | Disposal | 2,000 | -- | 3,010–3,030 |
| Plugged | FRIENDSWOOD #1D | 42-339-30735 | PRESIDIO EXPL, INC | Disposal | 2,000 | -- | 3,010–3,030 |
| Plugged | SO. TEX. DEV. -A- #27 | 42-339-00253 | EAST TEXAS PROD MGT. INC | Disposal | 2,000 | -- | 1,870–4,100 |
| Plugged | WIGGINS-ATHEY A/C-1 #1D | 42-339-00710 | THORNBERRY OILFIELD SERVICE, INC | Disposal | 2,000 | -- | 2,309–3,250 |
| Plugged | CONROE FIELD UNIT #1006I | 42-339-00586 | YOUNGBLOOD, C. S. III | Injection | 2,000 | -- | 1,900–3,900 |
| Plugged | CONROE FIELD UNIT #29D | 42-339-00514 | YOUNGBLOOD, C. S. III | Disposal | 2,000 | -- | 3,000–3,200 |
| Plugged | CONROE FIELD UNIT #621I | 42-339-00340 | YOUNGBLOOD, C. S. III | Injection | 2,000 | -- | 5,019–5,072 |
| Plugged | CTOU SWD #1 | 42-339-01952 | COMET OIL & GAS, INC | Disposal | 2,000 | -- | 2,750–3,650 |
| Plugged | CONROE FIELD UNIT #603 | 42-339-00331 | HUMBLE OIL & REFINING CO. | UIC | 2,000 | -- | 5,010–5,050 |
| Cancelled | CONROE FIELD UNIT #144 | 42-339-00000 | HUMBLE OIL & REFINING CO. | UIC | 2,000 | -- | 4,986–5,028 |
| Plugged | CONROE FIELD UNIT #605 | 42-339-00344 | HUMBLE OIL & REFINING CO. | UIC | 2,000 | -- | 5,004–5,058 |
| Plugged | FITCH, MARY LOUISE #9 | 42-339-01772 | GEOSOUTHERN ENGY CORP | Disposal | 1,500 | -- | 2,450–2,650 |
| Plugged | CONROE FIELD UNIT #20D | 42-339-01582 | YOUNGBLOOD, C. S. III | Disposal | 1,500 | -- | 3,100–3,400 |
| Plugged | WIGGINS, W. R. #1 | 42-339-00814 | THORNBERRY OILFIELD SERVICE, INC | Disposal | 1,500 | -- | 3,760–3,820 |
| Cancelled | -- #4 | 42-339-01788 | HUNT, LAMAR, TRUST ESTATE | UIC | 1,500 | -- | 6,076–6,081 |
| Plugged | HOOPER, FANNIE #2 | 42-339-00557 | FIVE-JAB, INC | Disposal | 1,200 | -- | 2,500–3,670 |
| Plugged | FOSTER #12D | 42-339-01664 | SUN EXPL. & PROD. CO.-LAFAYETTE | Disposal | 1,000 | -- | 2,500–4,000 |
| Cancelled | KEYSTONE MILLS #5 | 42-339-80217 | ATLANTIC RICHFIELD CO | UIC | 1,000 | -- | 5,070–5,076 |
| Cancelled | WICKIZER #3 #3 | 42-339-30971 | LYNCO OIL CORP | Disposal | 1,000 | -- | 2,750–3,150 |
| Plugged | KEYSTONE MILLS #2D | 42-339-01339 | SUN EXPL. & PROD. CO.-LAFAYETTE | Disposal | 1,000 | -- | 2,500–4,000 |
| Cancelled | KEYSTONE MILLS #4 | 42-339-80216 | ATLANTIC RICHFIELD CO | UIC | 1,000 | -- | 5,010–5,046 |
| Plugged | KING, R. V. #1 | 42-339-30609 | MITCHELL ENGY CORP | Disposal | 1,000 | -- | 3,130–3,950 |
| Cancelled | SOUTH TEXAS DEVELOPMENT CO. -A- #A-3 | 42-339-00323 | HUMBLE OIL & REFINING CO. | UIC | 1,000 | -- | 4,930–4,970 |
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.