WELL · 42-329-36711 · DISTRICT 8
Cook #4
Midland County · Spraberry (Trend Area) field · Producing · Vertical
Cook #4 (API 42-329-36711) is a well in Midland County operated by Xto Energy Inc., completed June 8, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued August 10, 2010, permitted to 10,844 ft.
It was permitted by Berry Oil Comp. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Yates, Clear Fork, Spraberry, Dean.
Its lease has reported 575K barrels of oil and 1.13M mcf of gas since October 2009, last reporting in July 2026. The lease carries 10 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Berry Oil Comp.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Berry Oil Comp.Aug 10, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,844
- total depth, ft
- 2
- permits on file
- Aug 10, 2010
- last permit issued
- Jun 8, 2012
- completed
- 575K
- cumulative oil, bbl
- 1.13M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 8, 2012
- Shut in
- —
- 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 lease this well is completed on; they carry 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cook O-10-39788 | Spraberry (Trend Area) | XTO Energy Inc. | 10 | 575K | 1.13M | Oct 2009 – Jul 2026 |
Oil, barrels lease total
Last 12 months 23,805 · prior 12 33,913(-30%)
Gas, mcf lease total
Last 12 months 53,075 · prior 12 43,660(+22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Meritage Energy Company, LLCOct 2009 → Feb 2010
- 2Berry Oil Comp.Mar 2010 → Jun 2014
- 3Linn Operating, Inc.Jul 2014 → Oct 2014
- 4XTO Energy Inc.Nov 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 698861-98 | Drill | Berry Oil Comp. | Dec 12, 2010 | Aug 10, 2010 | Aug 16, 2010 | 12,000 |
| 698861-99 | Drill | Berry Oil Comp. | Jul 13, 2010 | Aug 10, 2010 | Aug 16, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 8, 2012 | Cook O-10-39788 | Spraberry (Trend Area) | XTO Energy Inc. | Producing | 10,844 |
Formation tops
As filed on W-2/G-1. Subsea from 2,680 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,303 | 377 |
| Clear ForkCLEARFORK | 6,041 | -3,361 |
| Clear ForkCLEARFORK LIME | 6,041 | -3,361 |
| SpraberryUPPER SPRABERRY | 7,048 | -4,368 |
| Spraberry | 7,918 | -5,238 |
| Dean | 8,345 | -5,665 |
| Wolfcamp | 8,538 | -5,858 |
| Strawn | 10,130 | -7,450 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,918 | 10,576 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 390 | 17.5 | 470 S |
| 8.625 | 4,995 | 11 | 1,450 S |
| 5.5 | 10,815 | 7.875 | 1,250 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 | Sep 5, 2013 | Mar 7, 2013 | — |
| 00 | Jul 10, 2013 | Jul 12, 2012 | — |
| 00 | Jul 8, 2011 | Jan 31, 2011 | Yes |
| 00 | Jun 27, 2011 | — | — |
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 42-329-36711 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-36711 → 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/32936711, documented in the API reference.