WELL · 42-081-31671 · DISTRICT 7
Chadbourne Ranch 431 -A- #20
Coke County · Fort Chadbourne field · Vertical
Chadbourne Ranch 431 -A- #20 (API 42-081-31671) is a plugged well in Coke County, plugged September 4, 2003, last operated by Kerr-Mcgee Oil & Gas Onshore LP.
The RRC has issued one drilling permit, issued February 1, 1995, permitted to 6,000 ft.
It was permitted by Coda Energy, Inc. and has since transferred to Kerr-Mcgee Oil & Gas Onshore LP on the wellbore schedule.
Completion filings report 3 formation tops, including Goen Lime, Gardner Lime, Odom Lime.
Its lease has reported 572K barrels of oil and 1.28M mcf of gas since January 1993, last reporting in March 2008. The lease carries 17 wells, so these are lease totals, not this well alone.
Operator of record
Kerr-McGee Oil & Gas Onshore LP
Permitted by Coda Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 14, 2026
- Permits on file
- 234
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kerr-McGee Oil & Gas Onshore LP |
| Production reports | Westport Oil and Gas Company, LPthrough Apr 2004 |
| Latest permit | Coda Energy, Inc.Feb 1, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Feb 1, 1995
- last permit issued
- Mar 31, 1995
- completed
- 572K
- cumulative oil, bbl
- 1.28M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 31, 1995
- Shut in
- —
- Plugged
- Sep 4, 2003
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; they carry 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chadbourne Ranch '431' -A- O-9-13295 | Fort Chadbourne | Kerr-McGee Oil & Gas Onshore LP | 17 | 572K | 1.28M | Jan 1993 – Mar 2008 |
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.
- 1MJM Oil & Gas, Inc.Jan 1993 → Dec 1993
- 2Coda Energy, Inc.Jan 1994 → Aug 1998
- 3Belco Energy Corp.Sep 1998 → Sep 2001
- 4Westport Oil and Gas Company, LPApr 2004 → Apr 2004
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 432311-99 | Drill | Coda Energy, Inc. | Jan 27, 1995 | Feb 1, 1995 | Feb 28, 1995 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 31, 1995 | Chadbourne Ranch 431 -A- O-9-13295 | Fort Chadbourne | Kerr-McGee Oil & Gas Onshore LP | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,022 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Goen Lime | 5,095 | -3,073 |
| Gardner Lime | 5,352 | -3,330 |
| Odom Lime | 5,552 | -3,530 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,556 | 5,586 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 321 | 17.5 | 400 S |
| 8.625 | 2,753 | 11 | 850 S |
| 5.5 | 5,688 | 7.875 | 410 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 | May 16, 1995 | Apr 13, 1995 | Yes |
| 00 | Apr 20, 1995 | — | — |
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 42-081-31671 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-081-31671 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000089711 | H-1 Injection | Plugged Sep 15, 2003 | 2,000 | 2,000 | 5,556–5,586 |
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/08131671, documented in the API reference.