TEXAS · WELLS · MARTIN COUNTY · TUNNELL LEASE · API 42-317-33501 · DISTRICT 7B
Tunnell #1
Martin County · Spraberry (Trend Area) field · Vertical
Tunnell #1 (API 42-317-33501) is a plugged well in Martin County, plugged February 14, 2013, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued December 21, 1987, permitted to 9,175 ft.
It was permitted by Parker & Parsley Petroleum CO. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including Spraberry, Dean.
Its lease has reported 59.2K barrels of oil and 59.7K mcf of gas since January 1993, last reporting in February 2014.
Operator of record
Permitted by Parker & Parsley Petroleum Co.; 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 Dec 2012 |
| Latest permit | Parker & Parsley Petroleum Co.Dec 21, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,175
- total depth, ft
- 1
- permits on file
- Dec 21, 1987
- last permit issued
- Feb 29, 1988
- completed
- 59.2K
- cumulative oil, bbl
- 59.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2014
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 29, 1988
- Shut in
- —
- Plugged
- Feb 14, 2013
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 |
|---|---|---|---|---|---|---|
| Tunnell O-10-31792 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 59.2K | 59.7K | Jan 1993 – Feb 2014 |
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.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Dec 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 340487-99 | Drill | Parker & Parsley Petroleum Co. | Dec 21, 1987 | Dec 21, 1987 | — | 9,175 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 29, 1988 | Tunnell O-10-31792 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,811 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,542 | 7,710 | Perforated |
| 7,790 | 8,440 | Perforated |
| 8,800 | 9,096 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 267 | 17.5 | 350 S |
| 8.625 | 3,952 | 11 | 250 S |
| 4.5 | 9,200 | 7.875 | 800 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 | Jun 10, 2010 | Dec 21, 2009 | — |
| 00 | May 26, 1988 | Apr 29, 1988 | Yes |
| 00 | May 11, 1988 | — | — |
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 42-317-33501 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-33501 → 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/31733501, documented in the API reference.