WELL · 42-317-36413 · DISTRICT 8
Wilbanks #1
Martin County · Spraberry (Trend Area) field · Shut IN · Vertical
Wilbanks #1 (API 42-317-36413) is a well in Martin County operated by Diamondback E&P LLC, completed July 16, 2011 and listed as shut in on the RRC schedule, shut in October 1, 2023.
The RRC has issued one drilling permit (amended once), issued November 8, 2010, permitted to 10,797 ft.
It was permitted by Cobra Oil & Gas Corporation and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Clear Fork, Base Clearkfork, Spraberry, Dean.
Its 3 leases have reported 611K barrels of oil and 1.35M mcf of gas since September 2008, last reporting in July 2026. The leases carry 20 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cobra Oil & Gas Corporation; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Cobra Oil & Gas CorporationNov 8, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,797
- total depth, ft
- 2
- permits on file
- Nov 8, 2010
- last permit issued
- Jul 16, 2011
- completed
- 611K
- cumulative oil, bbl
- 1.35M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 16, 2011
- Shut in
- Oct 1, 2023
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 20 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Wilbanks 14 O-10-38987 | Spraberry (Trend Area) | Diamondback E&P LLC | 13 | 313K | 702K | Sep 2008 – Jul 2026 |
| Wilbanks O-10-44873 | Spraberry (Trend Area) | Diamondback E&P LLC | 6 | 286K | 609K | Apr 2013 – Jul 2026 |
| Wilbanks B O-10-44872 | Spraberry (Trend Area) | Energen Resources Corporation | 1 | 12.3K | 37.6K | Apr 2013 – Mar 2017 |
Oil, barrels lease total
Last 12 months 11,409 · prior 12 17,473(-35%)
Gas, mcf lease total
Last 12 months 27,853 · prior 12 54,192(-49%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cobra Oil & Gas CorporationSep 2008 → Nov 2011
- 2Energen Resources CorporationDec 2011 → Jan 2019
- 3Diamondback E&P LLCFeb 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 704738-98 | Drill | Cobra Oil & Gas Corporation | Dec 17, 2010 | Nov 8, 2010 | Jan 11, 2011 | 12,000 |
| 704738-99 | Drill | Cobra Oil & Gas Corporation | Nov 2, 2010 | Nov 8, 2010 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 16, 2011 | Wilbanks O-10-44873 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut IN · shut in Oct 1, 2023 | 10,797 |
| Jul 16, 2011 | Wilbanks 14 O-10-38987 | Spraberry (Trend Area) | Diamondback E&P LLC | Not on Schedule | — |
| Jul 16, 2011 | Wilbanks B O-10-44872 | Spraberry (Trend Area) | Energen Resources Corporation | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,573 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 5,180 | -2,607 |
| Clear ForkBASE CLEARFORK | 6,570 | -3,997 |
| Base Clearkfork | 6,570 | -3,997 |
| SpraberryUPPER SPRABERRY | 6,835 | -4,262 |
| SpraberryLOWER SPRABERRY | 7,315 | -4,742 |
| Dean | 8,105 | -5,532 |
| Wolfcamp | 8,325 | -5,752 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,630 | 9,703 | Perforated |
| 9,782 | 9,936 | Perforated |
| 10,372 | 10,624 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 350 | 17.5 | 325 S |
| 8.625 | 4,515 | 11 | 1,050 S |
| 5.5 | 10,710 | 7.875 | 1,500 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 | Dec 2, 2016 | Aug 2, 2011 | — |
| 00 | Aug 1, 2014 | Aug 2, 2011 | — |
| 00 | Oct 9, 2012 | Aug 2, 2011 | — |
| 00 | Mar 30, 2012 | Jun 21, 2011 | Yes |
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 42-317-36413 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-36413 → 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/31736413, documented in the API reference.