WELL · 42-495-33730 · DISTRICT 8
Ally #4H
Winkler County · Keystone (Wolfcamp) field · Producing · Horizontal
Ally #4H (API 42-495-33730) is a horizontal well in Winkler County operated by Formentera Operations LLC, completed November 2, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 11, 2016, permitted to 7,661 ft.
It was permitted by Boyd & Mcwilliams Operating, LLC and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Yates, Colby-Queen, San Andres.
Its lease has reported 1.37M barrels of oil and 1.92M mcf of gas since November 2016, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Boyd & McWilliams Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Austin, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 11, 2026
- Permits on file
- 90
- Phone
- (512) 514-5779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Formentera Operations LLC |
| Production reports | Formentera Operations LLCthrough Mar 2026 |
| Latest permit | Boyd & McWilliams Operating, LLCJul 11, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,661
- total depth, ft
- 1
- permits on file
- Jul 11, 2016
- last permit issued
- Nov 2, 2016
- completed
- 1.37M
- cumulative oil, bbl
- 1.92M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 2, 2016
- 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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ally O-10-48672 | Keystone (Wolfcamp) | Formentera Operations LLC | 6 | 1.37M | 1.92M | Nov 2016 – Jul 2026 |
Oil, barrels lease total
Last 12 months 90,317 · prior 12 109,325(-17%)
Gas, mcf lease total
Last 12 months 216,073 · prior 12 252,878(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Boyd & McWilliams Operating, LLCNov 2016 → Jul 2021
- 2Saddleback Exploration, LLCAug 2021 → Apr 2024
- 3Formentera Operations LLCMay 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 816911-99 | Drill | Boyd & McWilliams Operating, LLC | Jul 9, 2016 | Jul 11, 2016 | Jul 22, 2016 | 8,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 2, 2016 | Ally O-10-48672 | Keystone (Wolfcamp) | Formentera Operations LLC | Producing | 7,661 |
Formation tops
As filed on W-2/G-1. Subsea from 2,934 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| RustlerRUSTLER - POSSIBLE FLOW; POSSIBL | 1,000 | 1,934 |
| Yates | 2,630 | 304 |
| Colby-Queen | 3,550 | -616 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,940 | -1,006 |
| Glorieta | 5,030 | -2,096 |
| Clear ForkCLEARFORK | 5,360 | -2,426 |
| Wichita-AlbanyWICHITA ALBANY | 6,521 | -3,587 |
| Delaware | — | — |
| Holt | — | — |
| QueenQUEEN-SEVEN RIVERS | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,751 | 12,088 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 82 | 24 | 70 S |
| 9.625 | 2,535 | 12.25 | 890 S |
| 5.5 | 12,230 | 8.75 | 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 | Jul 14, 2017 | Apr 29, 2017 | 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 42-495-33730 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-33730 → 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/49533730, documented in the API reference.