E VELMA MIDDLE BLOCK UNIT (HEFNER #1) #221
API 3501904686 · Carter County, Oklahoma
AC2RIn
Injection
12 monthly filings with Oklahoma, Jan 2025 to Dec 2025.
Oklahoma well-type code
2RIn
Cumulative fluid injected
0 bbl
| Month | Fluid injected (bbl) | Max pressure (psi) |
|---|---|---|
| Dec 2025 | 0 | 0 |
| Nov 2025 | 0 | 0 |
| Oct 2025 | 0 | 0 |
| Sep 2025 | 0 | 0 |
| Aug 2025 | 0 | 0 |
| Jul 2025 | 0 | 0 |
| Jun 2025 | 0 | 0 |
| May 2025 | 0 | 0 |
| Apr 2025 | 0 | 0 |
| Mar 2025 | 0 | 0 |
| Feb 2025 | 0 | 0 |
| Jan 2025 | 0 | 0 |
A dash is a month the well filed with no figure in that column.
Completion
Oklahoma files 1 completion report for this well.
Completion 3
STRAIGHT HOLEAC2RInSpudded
1952-05-08
Drilling finished
1952-06-18
Completed
1952-06-18
Recompleted
2010-07-26
First production
1952-06-18
Total depth
5,042 ft
Operator
CITATION OIL & GAS CORP
Interval
| Formation | Produced | Perforated (ft) |
|---|---|---|
| SIMS | INJ | 4,690–4,930 |
Casing
| String | Size (in) | Weight (lb/ft) | Grade | Set (ft) | Cement (sacks) |
|---|---|---|---|---|---|
| PRODUCTION | 5 1/2 | 14 | — | 5,000 | 300 |
| SURFACE | 10 3/4 | 32.75 | — | 320 | 300 |
Location
34.395257, -97.561357
34.39526, -97.56136 · 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.