TEXAS · WELLS · SHACKELFORD COUNTY · COOK RANCH 88 LEASE · API 42-417-39052 · DISTRICT 6E
Cook Ranch 88 #77
Shackelford County · Cook Ranch field · Producing · Vertical
- Fields on the latest permit · any of 2
- Cook Ranch · Shackelford County Regular
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Cook Ranch 88 #77 (API 42-417-39052) is a well in Shackelford County operated by Stasney Well Service LLC, completed November 29, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 19, 2010, permitted to 1,544 ft.
It was permitted by Stasney, H. R. & Sons, Ltd. and has since transferred to Stasney Well Service LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Coleman Junction, Dothan Ls, Frye Sand, Tannehill.
Its lease has reported 114K barrels of oil and 44.7K mcf of gas since July 2009, last reporting volume in April 2026. The lease carries 33 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Stasney, H. R. & Sons, Ltd.; the EWA schedule now lists a different operator.
- Based in
- Albany, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 22, 2026
- Permits on file
- 305
- Phone
- (325) 762-3311
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Stasney Well Service LLC |
| Production reports | Stasney Well Service, LLCthrough Apr 2026 |
| Latest permit | Stasney, H. R. & Sons, Ltd.Feb 19, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,544
- total depth, ft
- 1
- permits on file
- Feb 19, 2010
- last permit issued
- Nov 29, 2011
- completed
- 114K
- cumulative oil, bbl
- 44.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2009 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 29, 2011
- 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 33 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cook Ranch 88 O-8-30364 | Cook Ranch | Stasney Well Service, LLC | 33 | 114K | 44.7K | Jul 2009 – Apr 2026 |
Oil, barrels lease total
Last 12 months 2,405 · prior 12 2,372(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Stasney, H. R. & Sons, Ltd.Jul 2009 → May 2011
- 2Stasney Well Service, LLCJun 2011 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 691210-99 | Drill | Stasney, H. R. & Sons, Ltd. | Feb 11, 2010 | Feb 19, 2010 | Aug 5, 2010 | 2,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 29, 2011 | Cook Ranch 88 O-8-30364 | Cook Ranch | Stasney Well Service LLC | Producing | 1,544 |
Formation tops
As filed on W-2/G-1. Subsea from 1,745 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Coleman JunctionCOLEMAN JUNCTION LS | 700 | 1,045 |
| Dothan LS | 1,002 | 743 |
| Frye Sand | 1,181 | 564 |
| TannehillTANNEHILL LS | 1,232 | 513 |
| Saddle CreekSADDLE CREEK LS | 1,291 | 454 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,495 | 1,502 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 81 | 11 | 70 S |
| 4.5 | 1,533 | 6.75 | 340 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 | Mar 26, 2012 | Jan 16, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 17, 2012. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Coleman Junction, Dothan Ls, Frye Sand, Tannehill, Saddle Creek | TIFF | 90 to 1,544 | Apr 17, 2012run Aug 11, 2010 | 0.90 |
"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 42-417-39052 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-417-39052 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/41739052, documented in the API reference.