WELL · 42-383-34121 · DISTRICT 7
Bullhead #13
Reagan County · Spraberry (Trend Area) field · Vertical
Bullhead #13 (API 42-383-34121) is a plugged well in Reagan County, plugged September 23, 2022, last operated by Discovery Natural Resources LLC.
The RRC has issued one drilling permit, issued August 22, 1991, permitted to 7,300 ft.
It was permitted by Graham Royalty, Ltd. and has since transferred to Discovery Natural Resources LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its 3 leases have reported 7.58M barrels of oil and 55.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 150 wells, so these are lease totals, not this well alone.
Operator of record
Discovery Natural Resources LLC
Permitted by Graham Royalty, Ltd.; the EWA schedule now lists a different operator.
Denver, CO · P-5 Y, filed Oct 4, 2025 · 449 permits on file · (303) 893-5073
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Discovery Natural Resources LLC |
| Production reports | Discovery Natural Resources LLCthrough Apr 2026 |
| Latest permit | Graham Royalty, Ltd.Aug 22, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,300
- total depth, ft
- 1
- permits on file
- Aug 22, 1991
- last permit issued
- Dec 27, 2018
- completed
- 7.58M
- cumulative oil, bbl
- 55.7M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 27, 2018
- Shut in
- —
- Plugged
- Sep 23, 2022
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 3 leases this well is completed on; they carry 150 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Rocker B--B- O-9-4449 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 13 | 93.3K | 1.47M | Jan 1993 – Jul 2026 |
| Bullhead O-9-20070 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 132 | 7.48M | 54.2M | Nov 2018 – Jul 2026 |
| Rocker BB 46-47 O-9-20012 | Spraberry (Trend Area) | Discovery Natural Resources LLC | 5 | 0 | 0 | Oct 2018 – Jan 2019 |
Gas, mcf lease total
Last 12 months 10,311,743 · prior 12 10,722,552(-4%)
Oil, barrels lease total
Last 12 months 1,333,222 · prior 12 1,525,825(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Graham Royalty, Ltd.Jan 1993 → Oct 1993
- 2Cox, John L.Nov 1993 → Sep 2003
- 3JM Cox Resources, L.P.Oct 2003 → Aug 2018
- 4Discovery Natural Resources LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 391019-99 | Drill | Graham Royalty, Ltd. | Aug 19, 1991 | Aug 22, 1991 | Sep 12, 1991 | 7,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-4449 | — | — | — | — |
| — | — O-9-20012 | — | — | — | — |
| — | — O-9-20070 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,612 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,607 | 7,189 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 519 | 11 | 300 S |
| 4.5 | 7,300 | 7.875 | 925 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 8, 2019 | Jun 25, 2019 | — |
| 00 | Dec 13, 2018 | Dec 11, 1991 | Yes |
| 00 | Oct 23, 2018 | Dec 11, 1991 | Yes |
| 00 | Dec 18, 1991 | Dec 11, 1991 | Yes |
| 00 | Dec 17, 1991 | — | — |
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 42-383-34121 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-34121 → 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/38334121, documented in the API reference.