PIERCE UNIT #1-7
API 3501924017 · Carter County, Oklahoma
AC2RIn
Injection
12 monthly filings with Oklahoma, Jan 2025 to Dec 2025.
Oklahoma well-type code
2RIn
Injection zone
PENNSYLVANIAN
Cumulative fluid injected
618,157 bbl
| Month | Fluid injected (bbl) | Max pressure (psi) |
|---|---|---|
| Dec 2025 | 70,865 | 0 |
| Nov 2025 | 67,358 | 0 |
| Oct 2025 | 77,491 | 0 |
| Sep 2025 | 55,391 | 0 |
| Aug 2025 | 60,081 | 0 |
| Jul 2025 | 63,979 | 0 |
| Jun 2025 | 39,185 | 275 |
| May 2025 | 42,969 | 275 |
| Apr 2025 | 40,307 | 275 |
| Mar 2025 | 40,166 | 275 |
| Feb 2025 | 31,886 | 275 |
| Jan 2025 | 28,479 | 275 |
A dash is a month the well filed with no figure in that column.
Drilling permit
Oklahoma files 1 application to drill this well, naming 6 target formations. A permit records what an operator asked to do, not what it did. A target formation is where the operator aimed, and the hole may have missed it, stopped short of it or never been drilled.
Filed 1990-12-17
WRADRPermit API
35019240170000
Operator
MACK ENERGY CO.
Well type
2RIn
Approved
1990-12-17
Expires
1991-07-01
Proposed depth
4,500 ft
Surface casing
200 ft
Ground elevation
1,028 ft
Target formations
| Formation | Expected top (ft) |
|---|---|
| HOXBAR | 1,700 |
| EASON | 2,900 |
| TUSSY | 3,100 |
| CARPENTER | 4,000 |
| MORRIS /DES MOINES/ | 4,300 |
| DORNICK HILLS | 4,500 |
An expected top is the depth the operator predicted before drilling, on the application it filed with Oklahoma. It is not a measurement of where the formation was found.
Location
34.393187, -97.451650
34.39319, -97.45165 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom
Every well in Carter County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.