COBB RANCH #65
API 3514727817 · Washington County, Oklahoma
Completion
Oklahoma files 1 completion report for this well. One carries a production test the operator filed.
Completion 2
STRAIGHT HOLEACOILIntervals
| Formation | Produced | Perforated (ft) | Treatment |
|---|---|---|---|
| PERU | OIL | 455–471 | Acid, Frac |
| COAL (PENNSYLVANIAN) | GAS | 680–684 | Acid, Frac |
Production test
| Tested | Oil (bbl/d) | Gas (MCF/d) | Water (bbl/d) | Gravity (°API) | Shut-in (psi) | Choke |
|---|---|---|---|---|---|---|
| 2011-07-15 | 5 | 0 | 108 | — | 40 | — |
A production test is one measurement the operator made on one day and filed with Oklahoma. It is not a monthly average and it does not describe how the well produced afterwards. The choke size is shown exactly as filed: Oklahoma records it in inches on some reports and in sixty-fourths of an inch on others, and names the unit on neither. A dash is a measurement Oklahoma did not file, or one it filed outside any physically possible range.
Casing
| String | Size (in) | Weight (lb/ft) | Grade | Set (ft) | Cement (sacks) |
|---|---|---|---|---|---|
| PRODUCTION | 4.5 | 9.5 | J-55 | 1,263 | 110 |
| SURFACE | 7 | 20 | J-55 | 40 | 5 |
Drilling permits
Oklahoma files 3 applications to drill this well, naming 9 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 2007-09-28
WRADRStraight holeTarget formations
| Formation | Expected top (ft) |
|---|---|
| COAL (PENNSYLVANIAN) | 670 |
| BLUEJACKET | 1,100 |
| ROWE COAL | 1,230 |
| RIVERTON | 1,250 |
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.
Filed 2007-09-28
WRAAMStraight holeTarget formations
| Formation | Expected top (ft) |
|---|---|
| COAL (PENNSYLVANIAN) | 670 |
| BLUEJACKET | 1,100 |
| ROWE COAL | 1,230 |
| RIVERTON | 1,250 |
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.
Filed 2011-05-27
WRARCStraight holeTarget formation
| Formation | Expected top (ft) |
|---|---|
| PERU | 455 |
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
36.545076, -95.845679
Every well in Washington County, Oklahoma
Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.