WELL · 42-475-36637 · DISTRICT 8
Allar-Marston #4
Ward County · Marston Ranch (Clearfork) field · Vertical
Allar-Marston #4 (API 42-475-36637) is a well in Ward County operated by Atlantic Exploration LLC, completed May 28, 2014.
The RRC has issued one drilling permit, issued January 29, 2014, permitted to 6,000 ft.
Completion filings report 10 formation tops, including Rustler, Yates, Seven Rivers, Queen.
Its 2 leases have reported 227K barrels of oil and 480K mcf of gas since March 2013, last reporting in July 2026. The leases carry 12 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Aug 5, 2016 · 118 permits on file · (720) 839-6964
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Atlantic Exploration LLC |
| Production reports | N & B Oil and Gas LLCthrough Apr 2026 |
| Latest permit | Atlantic Exploration, LLCJan 29, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Jan 29, 2014
- last permit issued
- May 28, 2014
- completed
- 227K
- cumulative oil, bbl
- 480K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 28, 2014
- 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 12 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Allar-Marston O-10-44073 | Marston Ranch (Clearfork) | N & B Oil and Gas LLC | 10 | 227K | 480K | Mar 2013 – Jul 2026 |
| Allar-Marston O-10-45853 | Marston Ranch (Clearfork) | Atlantic Exploration, LLC | 2 | 0 | 0 | Aug 2014 – Apr 2015 |
Oil, barrels lease total
Last 12 months 6,000 · prior 12 7,764(-23%)
Gas, mcf lease total
Last 12 months 20,190 · prior 12 23,137(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Atlantic Exploration, LLCMar 2013 → Aug 2014
- 2Centennial Resource Prod, LLCSep 2014 → Oct 2014
- 3Blackbeard Operating, LLCNov 2014 → Aug 2025
- 4N & B Oil and Gas LLCSep 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 777173-99 | Drill | Atlantic Exploration, LLC | Jan 13, 2014 | Jan 29, 2014 | Mar 1, 2014 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-44073 | — | — | — | — |
| — | — O-10-45853 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,541 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,826 | 715 |
| Yates | 2,002 | 539 |
| Seven Rivers | 2,198 | 343 |
| Queen | 3,019 | -478 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,203 | -662 |
| Holt | 4,021 | -1,480 |
| Glorieta | 4,158 | -1,617 |
| Clear ForkCLEARFORK | 4,380 | -1,839 |
| Delaware | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,278 | 4,376 | Perforated |
| 4,487 | 4,651 | Perforated |
| 4,758 | 4,840 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 40 | 20 | 108 S |
| 8.625 | 840 | 12.25 | 440 S |
| 5.5 | 5,034 | 7.875 | 1,400 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 | Apr 24, 2015 | Dec 19, 2014 | Yes |
| 00 | Mar 25, 2015 | Dec 19, 2014 | 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 42-475-36637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-36637 → 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/47536637, documented in the API reference.