TEXAS · WELLS · ECTOR COUNTY · WHL LEASE · API 42-135-40774 · DISTRICT 7B
WHL #402
Ector County · Spraberry (Trend Area) field · Vertical
Whl #402 (API 42-135-40774) is a plugged well in Ector County, plugged December 20, 2015, last operated by Diamondback E&P LLC.
The RRC has issued 2 drilling permits (amended once) between 2011 and 2012, permitted to 11,200 ft.
Completion filings report 3 formation tops, including Clear Fork, Spraberry, Strawn.
Its lease has reported 786K barrels of oil and 1.97M mcf of gas since August 2010, last reporting volume in April 2026. The lease carries 20 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,243
- 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 | Diamondback E&P LLCSep 27, 2012 |
- 11,200
- total depth, ft
- 3
- permits on file
- Sep 27, 2012
- last permit issued
- May 5, 2012
- completed
- 786K
- cumulative oil, bbl
- 1.97M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 5, 2012
- Shut in
- —
- Plugged
- Dec 20, 2015
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 20 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| WHL O-10-40511 | Spraberry (Trend Area) | Diamondback E&P LLC | 20 | 786K | 1.97M | Aug 2010 – Apr 2026 |
Oil, barrels lease total
Last 12 months 7,724 · prior 12 10,592(-27%)
Gas, mcf lease total
Last 12 months 20,327 · prior 12 24,937(-18%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Windsor Permian LLCAug 2010 → Jun 2012
- 2Diamondback E&P LLCJul 2012 → Apr 2026
- 3Octane Energy Operating, LLCMay 2021 → Aug 2024
- 4De IV Operating, LLCSep 2024 → Apr 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 748126-99 | Recompletion | Diamondback E&P LLC | Sep 12, 2012 | Sep 27, 2012 | — | 11,200 |
| 709282-98 | Drill | Diamondback E&P LLC | May 21, 2013 | Jan 28, 2011 | Mar 26, 2011 | 10,900 |
| 709282-99 | Drill | Windsor Permian LLC | Jan 26, 2011 | Jan 28, 2011 | Mar 28, 2011 | 11,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 5, 2012 | WHL O-10-40511 | Spraberry (Trend Area) | Diamondback E&P LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,994 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,659 | -3,665 |
| SpraberryUPPER SPRABERRY | 7,456 | -4,462 |
| Strawn | 9,926 | -6,932 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,370 | 10,580 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,574 | 17.5 | 1,300 S |
| 8.625 | 5,513 | 12.25 | 700 S |
| 5.5 | 10,900 | 7.875 | 1,200 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 26, 2013 | Aug 2, 2013 | — |
| 00 | Aug 23, 2013 | Feb 14, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 22, 2014. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Clear Fork, Spraberry, Strawn | TIFF | 100 to 10,884 | Apr 22, 2014run Apr 10, 2011 | 3.68 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-135-40774 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-40774 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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 |
|---|---|---|---|---|---|
| 000105947 | H-1 Injection | Plugged Jan 7, 2016 | 10,000 | 2,500 | 5,100–5,230 |
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/13540774, documented in the API reference.