WELL · 42-317-32840 · DISTRICT 8
Coffield #1
Martin County · Spraberry (Trend Area) field · Vertical
Coffield #1 (API 42-317-32840) is a plugged well in Martin County, plugged May 22, 2025, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued November 21, 1983, permitted to 9,500 ft.
It was permitted by Hcw Exploration, Inc. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Queen, Grayburg, San Andres.
Its lease has reported 42.8K barrels of oil and 180K mcf of gas since January 1993, last reporting in August 2025.
Operator of record
Permitted by HCW Exploration, Inc.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Jul 2023 |
| Latest permit | HCW Exploration, Inc.Nov 21, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 1
- permits on file
- Nov 21, 1983
- last permit issued
- Mar 29, 1984
- completed
- 42.8K
- cumulative oil, bbl
- 180K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2025
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 29, 1984
- Shut in
- —
- Plugged
- May 22, 2025
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 |
|---|---|---|---|---|---|---|
| Coffield O-10-28845 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 42.8K | 180K | Jan 1993 – Aug 2025 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Jul 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 221380-99 | Drill | HCW Exploration, Inc. | Nov 21, 1983 | Nov 21, 1983 | Nov 30, 1983 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-28845 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,824 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,822 | 2 |
| Queen | 3,492 | -668 |
| Grayburg | 3,975 | -1,151 |
| San Andres | 4,450 | -1,626 |
| GlorietaGLORIETTA | 5,452 | -2,628 |
| Clear ForkCLEARFORK | 6,585 | -3,761 |
| Spraberry | 7,980 | -5,156 |
| Jo Mill | 8,292 | -5,468 |
| Dean | 9,325 | -6,501 |
| Rustler | 19,504 | -16,680 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,994 | 8,418 | Perforated |
| 8,494 | 8,878 | Perforated |
| 9,274 | 9,456 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 358 | 17.5 | 400 S |
| 8.625 | 4,435 | 11 | 400 S |
| 4.5 | 9,575 | 7.875 | 1,080 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 3, 1984 | Apr 18, 1984 | — |
| 00 | Apr 25, 1984 | Apr 18, 1984 | — |
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 42-317-32840 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-32840 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/31732840, documented in the API reference.