WELL · 42-173-33430 · DISTRICT 8
Cook E A #4
Glasscock County · Spraberry (Trend Area) field · Vertical
Cook E A #4 (API 42-173-33430) is a well in Glasscock County operated by Vital Energy Inc., completed April 14, 2009.
The RRC has issued one drilling permit, issued September 2, 2008, permitted to 10,500 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Vital Energy Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its 2 leases have reported 393K barrels of oil and 1.18M mcf of gas since February 2008, last reporting in July 2026. The leases carry 15 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 4, 2025 · 337 permits on file · (713) 953-8604
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Vital Energy Inc. |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Sep 2, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,500
- total depth, ft
- 1
- permits on file
- Sep 2, 2008
- last permit issued
- Apr 14, 2009
- completed
- 393K
- cumulative oil, bbl
- 1.18M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 14, 2009
- 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 15 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cook E O-10-39049 | Spraberry (Trend Area) | Crescent Energy Operating, LLC | 11 | 281K | 976K | Oct 2008 – Jul 2026 |
| Cook, E "A" O-10-38673 | Spraberry (Trend Area) | Vital Energy, Inc. | 4 | 112K | 205K | Feb 2008 – Jan 2026 |
Oil, barrels lease total
Last 12 months 8,014 · prior 12 11,381(-30%)
Gas, mcf lease total
Last 12 months 30,813 · prior 12 40,427(-24%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Feb 2008 → Nov 2019
- 2Laredo Petroleum, Inc.Dec 2019 → Jan 2023
- 3Vital Energy, Inc.Feb 2023 → Dec 2025
- 4Crescent Energy Operating, LLCJan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 668746-99 | Drill | Pioneer Natural Res. USA, Inc. | Aug 11, 2008 | Sep 2, 2008 | Dec 10, 2008 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38673 | — | — | — | — |
| — | — O-10-39049 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,707 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,555 | 6,560 | Perforated |
| 7,372 | 7,488 | Perforated |
| 8,125 | 8,205 | Perforated |
| 8,266 | 8,385 | Perforated |
| 8,493 | 8,609 | Perforated |
| 9,174 | 9,304 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 383 | 11 | 250 S |
| 4.5 | 10,156 | 7.875 | 1,100 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 9, 2025 | May 18, 2009 | Yes |
| 00 | Oct 23, 2009 | May 18, 2009 | Yes |
| 00 | Sep 10, 2009 | — | — |
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 42-173-33430 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-33430 → 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.
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/17333430, documented in the API reference.