FIELDS AND POOLS · UNITED STATES
US fields and pools
A regulator names each reservoir it oversees: a field in Texas, a pool in New Mexico. The name carries the formation, which is how one formation can be followed across a state line.
46,247 fields and pools match
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46,247 ON FILE · PAGE 282 OF 925
| Field or pool | State | Formation | County | Active completions | Operators | Oil, 12 mo | Gas, 12 mo | Lifetime oil | Last reported |
|---|---|---|---|---|---|---|---|---|---|
| Magnolia City, N. (Seg a 5300) | Texas | Seg a 5300 | Jim Wells | 1 | 1 | 0 | 0 | 0 | Sep 2024 |
| Magnolia City, W. (Reynolds) | Texas | Reynolds | Jim Wells | 1 | 1 | 0 | 0 | 14,252 | May 2025 |
| Main (2600 Sand) | Texas | 2600 Sand | Wilbarger +1 | 1 | 1 | 0 | 0 | 5 | — |
| Major Creek (Morrow, Upper) | Texas | Morrow Upper | Hemphill | 1 | 1 | 0 | 0 | 33 | Jun 2024 |
| M.A.J. (Silurian) | Texas | Silurian | Loving | 1 | 1 | 0 | 0 | 315 | Jun 2019 |
| Maljamar; Queen, East | New Mexico | Queen | Lea | 1 | 1 | 0 | 0 | 15 | Apr 2007 |
| Malo Sueno (3700) | Texas | 3700 | Webb | 1 | 1 | 0 | 0 | 0 | — |
| Manning-Harrington (Strawn) | Texas | Strawn | Throckmorton +1 | 1 | 1 | 0 | 0 | 28,378 | — |
| Manti Kudu South | Texas | — | McMullen | 1 | 1 | 0 | 0 | 6,503 | — |
| Map Boys (Rodessa) | Texas | Rodessa | Smith | 1 | 1 | 0 | 0 | 169,188 | Feb 2025 |
| Maple Slough (Upper Wilcox Cons) | Texas | Upper Wilcox Cons | Hardin | 1 | 1 | 0 | 0 | 29,816 | Aug 2022 |
| Maria H. Llanos (6400) | Texas | 6400 | Webb | 1 | 1 | 0 | 0 | 13,625 | Feb 2025 |
| Marianna | Texas | — | Gaines | 1 | 1 | 0 | 0 | 0 | — |
| Markham,n.-Bay CITY,N.(7500) | Texas | 7500 | Matagorda | 1 | 1 | 0 | 0 | 11,667 | Nov 2020 |
| Markham,n.-Bay City,n (7685) | Texas | 7685 | Matagorda | 1 | 1 | 0 | 0 | 120,468 | Jun 2024 |
| Maroon Cliffs; Morrow (Gas) | New Mexico | Morrow | Eddy | 1 | 1 | 0 | 0 | 29,475 | Jul 2025 |
| Marrs McLean (McLean) | Texas | McLean | Jefferson | 1 | 1 | 0 | 0 | 14,054 | Aug 2023 |
| Marshall, S.W. (Miocene 2350) | Texas | Miocene 2350 | Goliad | 1 | 1 | 0 | 0 | 0 | — |
| Martha Ann (Travis Peak) | Texas | Travis Peak | Smith +1 | 1 | 1 | 0 | 0 | 44,232 | Jan 2022 |
| Martha, South (Palmer Sand) | Texas | Palmer Sand | Liberty | 1 | 1 | 0 | 0 | 54,788 | Feb 2020 |
| Martin Prairie (Wilcox 4900) | Texas | Wilcox 4900 | Grimes +1 | 1 | 1 | 0 | 0 | 720,865 | May 2019 |
| Martin Ranch (Edwards) | Texas | Edwards | La Salle | 1 | 1 | 0 | 0 | 0 | — |
| Martinsville, NE. (Cotton Valley | Texas | — | Nacogdoches +1 | 1 | 1 | 0 | 0 | 3,528 | — |
| Maryetta (Atoka 5700) | Texas | Atoka 5700 | Jack | 1 | 1 | 0 | 0 | 29,855 | Nov 2021 |
| Maryneal (Cisco Sand) | Texas | Cisco Sand | Nolan | 1 | 1 | 0 | 0 | 163,985 | Jul 2023 |
| Maryneal (Strawn) | Texas | Strawn | Nolan | 1 | 1 | 0 | 0 | 564,928 | Oct 2023 |
| Mary Rita (Tannehill) | Texas | Tannehill | Jones | 1 | 1 | 0 | 0 | 0 | — |
| Mary Shirk (Wolfcamp) | Texas | Wolfcamp | Upton | 1 | 1 | 0 | 0 | 60,902 | May 2018 |
| Mason (Strawn, Lower) | Texas | Strawn Lower | Stephens | 1 | 1 | 0 | 0 | 3 | — |
| Matagorda Bay, NE (Miocene 1900) | Texas | Miocene 1900 | Matagorda | 1 | 1 | 0 | 0 | 0 | — |
| Matagorda Island Blk. 485-L (V) | Texas | V | Matgrda IS-LB | 1 | 1 | 0 | 0 | 475 | — |
| Matthews (Caddo) | Texas | Caddo | Shackelford | 1 | 1 | 0 | 0 | 0 | — |
| Maude B. Traylor, North (40) | Texas | 40 | Calhoun +1 | 1 | 1 | 0 | 0 | 21,929 | Jun 2023 |
| Maude B. Traylor, North (43) | Texas | 43 | Calhoun | 1 | 1 | 0 | 0 | 81,440 | — |
| Mauritz (5450 Frio) | Texas | 5450 Frio | Jackson | 1 | 1 | 0 | 0 | 58,502 | Sep 2024 |
| May (2 Sand, Lower) | Texas | 2 Sand, Lower | Kleberg | 1 | 1 | 0 | 0 | 571 | Oct 2023 |
| May (4 Sand, Lower) | Texas | 4 Sand, Lower | Kleberg | 1 | 1 | 0 | 0 | 0 | — |
| May (5 Sand, Middle) | Texas | 5 Sand, Middle | Kleberg | 1 | 1 | 0 | 0 | 38,683 | — |
| May (Basal Morrow) | Texas | Basal Morrow | Lipscomb | 1 | 1 | 0 | 0 | 2,782 | — |
| Mayes, South | Texas | — | Chambers | 1 | 1 | 0 | 0 | 29,010 | — |
| Mayes, South (Frio 9000) | Texas | Frio 9000 | Chambers | 1 | 1 | 0 | 0 | 1,428 | — |
| May (Lower 7) | Texas | Lower 7 | Kleberg | 1 | 1 | 0 | 0 | 10,094 | Apr 2024 |
| May (Massive 2) | Texas | Massive 2 | Kleberg | 1 | 1 | 0 | 0 | 0 | — |
| May (Massive 3) | Texas | Massive 3 | Kleberg | 1 | 1 | 0 | 0 | 289 | — |
| May (Massive 4) | Texas | Massive 4 | Kleberg | 1 | 1 | 0 | 0 | 0 | May 2022 |
| May (Massive 5) | Texas | Massive 5 | Kleberg | 1 | 1 | 0 | 0 | 121 | Oct 2023 |
| May (Middle 8) | Texas | Middle 8 | Kleberg | 1 | 1 | 0 | 0 | 282 | — |
| Mayo (5300 Frio) | Texas | 5300 Frio | Jackson | 1 | 1 | 0 | 0 | 84 | — |
| May, South (Massive Basal) | Texas | Massive Basal | Kleberg | 1 | 1 | 0 | 0 | 4,956 | Apr 2024 |
| McBee (Pettit) | Texas | Pettit | Leon | 1 | 1 | 0 | 0 | 3 | Jun 2025 |
OIL IN BBL · GAS IN MCF · TWELVE MONTHS THROUGH THE STATE'S REPORTED-THROUGH MONTH
About this data
Each state regulator's field and pool registry, with the completions and the reported volumes of each. The formation is read from the name the regulator gave it and matched to one registry shared by every state; a name that gives no single formation has none. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields, documented in the API reference.