WELL · 42-181-31237 · DISTRICT 9
Calhoun #2
Grayson County · Southmayd East (Davis) field · Vertical
Calhoun #2 (API 42-181-31237) is a plugged well in Grayson County, plugged August 12, 2019, last operated by Charter Oak Production CO. LLC.
The RRC has issued one drilling permit, issued April 2, 1990, permitted to 8,500 ft.
It was permitted by Precision Operating Inc. and has since transferred to Charter Oak Production CO. LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Gray Deese, Baker, Atoka, Viola.
Its lease has reported 13.5K barrels of oil and 60.1K mcf of gas since January 1993, last reporting in November 2020.
Operator of record
Charter Oak Production Co. LLC
Permitted by Precision Operating Inc.; the EWA schedule now lists a different operator.
Oklahoma City, OK · P-5 Y, filed Jun 4, 2026 · 12 permits on file · (405) 630-4350
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Charter Oak Production Co. LLC |
| Production reports | Charter Oak Production Co., LLCthrough Aug 2019 |
| Latest permit | Precision Operating Inc.Apr 2, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 1
- permits on file
- Apr 2, 1990
- last permit issued
- Jun 8, 1990
- completed
- 13.5K
- cumulative oil, bbl
- 60.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 2020
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 8, 1990
- Shut in
- —
- Plugged
- Aug 12, 2019
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Calhoun O-13-27722 | Southmayd, East (Davis) | Charter Oak Production Co., LLC | 1 | 13.5K | 60.1K | Jan 1993 – Nov 2020 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Precision Operating Inc.Jan 1993 → Aug 2005
- 2Charter Oak Production Co., LLCSep 2005 → Aug 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 371453-99 | Drill | Precision Operating Inc. | Mar 26, 1990 | Apr 2, 1990 | — | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-27722 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 745 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,992 | 8,008 | Perforated |
| 8,032 | 8,038 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,913 | 12.25 | 950 S |
| 5.5 | 8,342 | 7.875 | 400 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 20, 1990 | Jun 29, 1990 | Yes |
| 00 | Jul 12, 1990 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-181-31237 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-181-31237 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/18131237, documented in the API reference.