WELL · 42-173-33299 · DISTRICT 8
Cole Ranch 41 #4
Glasscock County · Spraberry (Trend Area) field · Vertical
Cole Ranch 41 #4 (API 42-173-33299) is a well in Glasscock County operated by Diamondback E&P LLC, completed March 13, 2015.
The RRC has issued one drilling permit, issued March 26, 2007, permitted to 8,900 ft.
It was permitted by Reef Exploration, L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 4 formation tops, including San Andres, Clear Fork, Spraberry, Wolfcamp.
Its 2 leases have reported 134K barrels of oil and 511K mcf of gas since May 2007, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 157K barrels injected in the 12 months reported through January 2026.
Operator of record
Permitted by Reef Exploration, L.P.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
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 | Reef Exploration, L.P.Mar 26, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,900
- total depth, ft
- 1
- permits on file
- Mar 26, 2007
- last permit issued
- Mar 13, 2015
- completed
- 134K
- cumulative oil, bbl
- 511K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 13, 2015
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cole Ranch "41" O-10-38169 | Spraberry (Trend Area) | Diamondback E&P LLC | 6 | 134K | 511K | May 2007 – Jul 2026 |
| Cole Ranch "41" SWD O-10-55402 | Spraberry (Trend Area) | Deep Blue Operating I LLC | 1 | 0 | 0 | Dec 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 5,433 · prior 12 7,240(-25%)
Gas, mcf lease total
Last 12 months 16,238 · prior 12 19,278(-16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Reef Exploration, L.P.May 2007 → Jun 2011
- 2Energen Resources CorporationJul 2011 → Jan 2019
- 3Diamondback E&P LLCFeb 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635469-99 | Drill | Reef Exploration, L.P. | Mar 19, 2007 | Mar 26, 2007 | Oct 9, 2007 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38169 | — | — | — | — |
| — | — O-10-38169 | — | — | — | — |
| — | — O-10-55402 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,710 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 3,205 | -495 |
| Clear ForkCLEARFORK | 4,753 | -2,043 |
| Spraberry | 6,508 | -3,798 |
| Wolfcamp | 8,110 | -5,400 |
| Wolfcamp | 8,422 | -5,712 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,214 | 4,400 | Perforated |
| 8,110 | 8,422 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 438 | 17.5 | 440 S |
| 8.625 | 4,445 | 11 | 980 S |
| 5.5 | 8,700 | 7.875 | 460 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 19, 2025 | Nov 17, 2025 | — |
| 00 | Mar 14, 2023 | Sep 26, 2022 | — |
| 00 | Mar 8, 2021 | Jun 12, 2015 | Yes |
| 00 | Aug 5, 2015 | Jun 12, 2015 | Yes |
| 00 | Jul 2, 2008 | Feb 28, 2008 | Yes |
| 00 | Jun 17, 2008 | — | — |
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 42-173-33299 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-33299 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 157K
- bbl, last 12 reported months
- 2.47M
- bbl, all reported
- Jan 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000112158 | W-14 Disposal | Active | 10,000 | 1,607 | 3,214–4,400 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 156,961 · prior 12 76,749(+105%)
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/17333299, documented in the API reference.