WELL · 42-135-40731 · DISTRICT 8
Chivas Regal #203
Ector County · Spraberry (Trend Area) field · Producing · Vertical
Chivas Regal #203 (API 42-135-40731) is a well in Ector County operated by Diamondback E&P LLC, completed November 26, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued January 13, 2011, permitted to 12,000 ft.
It was permitted by Resolute Natural Res. CO., LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Clear Fork, Wolfcamp, Strawn, Atoka.
Its lease has reported 400K barrels of oil and 1.24M mcf of gas since May 2010, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Resolute Natural Res. Co., LLC; 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 | Resolute Natural Res. Co., LLCJan 13, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Jan 13, 2011
- last permit issued
- Nov 26, 2011
- completed
- 400K
- cumulative oil, bbl
- 1.24M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 26, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chivas Regal O-10-40182 | Spraberry (Trend Area) | Diamondback E&P LLC | 8 | 400K | 1.24M | May 2010 – Jul 2026 |
Oil, barrels lease total
Last 12 months 6,137 · prior 12 8,966(-32%)
Gas, mcf lease total
Last 12 months 22,602 · prior 12 21,245(+6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Patriot Resources, Inc.May 2010 → Jan 2011
- 2RSP Permian, LLCFeb 2011 → Mar 2013
- 3Resolute Natural Res. Co., LLCApr 2013 → Nov 2015
- 4Independence Resources Mgmt, LLCDec 2015 → Mar 2021
- 5Earthstone Operating, LLCApr 2021 → Feb 2023
- 6DE IV Operating, LLCMar 2023 → Apr 2025
- 7Diamondback E&P LLCMay 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 708344-98 | Drill | Resolute Natural Res. Co., LLC | Mar 2, 2015 | Jan 13, 2011 | Sep 27, 2011 | 12,000 |
| 708344-99 | Drill | Patriot Resources, Inc. | Jan 11, 2011 | Jan 13, 2011 | Sep 27, 2011 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-40182 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,920 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 7,270 | -4,350 |
| Wolfcamp | 9,368 | -6,448 |
| Strawn | 10,411 | -7,491 |
| Atoka | 10,698 | -7,778 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,510 | 11,404 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,684 | 17.5 | 1,310 S |
| 8.625 | 5,517 | 11 | 685 S |
| 5.5 | 11,598 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 10, 2015 | Jan 21, 2015 | 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 42-135-40731 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-40731 → 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/13540731, documented in the API reference.