WELL · 42-475-36478 · DISTRICT 8
Marston-Koehn #2
Ward County · Marston Ranch (Clearfork) field · Vertical
Marston-Koehn #2 (API 42-475-36478) is a plugged well in Ward County, plugged May 12, 2023, last operated by N & B Oil And Gas LLC.
The RRC has issued one drilling permit, issued May 10, 2013, permitted to 7,000 ft.
It was permitted by Atlantic Exploration, LLC and has since transferred to N & B Oil And Gas LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Yates, Seven Rivers, Queen.
Its lease has reported 30.6K barrels of oil and 56.5K mcf of gas since February 2014, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Atlantic Exploration, LLC; the EWA schedule now lists a different operator.
- Based in
- Monahans, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 24, 2026
- Phone
- (432) 943-4425
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | N & B Oil and Gas LLC |
| Production reports | Blackbeard Operating, LLCthrough Apr 2023 |
| Latest permit | Atlantic Exploration, LLCMay 10, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 1
- permits on file
- May 10, 2013
- last permit issued
- Feb 18, 2014
- completed
- 30.6K
- cumulative oil, bbl
- 56.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 18, 2014
- Shut in
- —
- Plugged
- May 12, 2023
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Marston-Koehn O-10-45832 | Marston Ranch (Clearfork) | N & B Oil and Gas LLC | 5 | 30.6K | 56.5K | Feb 2014 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Atlantic Exploration, LLCApr 2014 → Aug 2014
- 2Centennial Resource Prod, LLCSep 2014 → Oct 2014
- 3Blackbeard Operating, LLCNov 2014 → Apr 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 762287-99 | Drill | Atlantic Exploration, LLC | May 8, 2013 | May 10, 2013 | Feb 11, 2014 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-45832 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,561 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 597 | 1,964 |
| Yates | 2,042 | 519 |
| Seven Rivers | 2,241 | 320 |
| Queen | 2,774 | -213 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,265 | -704 |
| Holt | 4,138 | -1,577 |
| Glorieta | 4,272 | -1,711 |
| Clear ForkCLEARFORK | 4,488 | -1,927 |
| Delaware | — | — |
| Tubb | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,366 | 4,422 | Perforated |
| 4,482 | 4,604 | Perforated |
| 4,800 | 4,916 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 14 | 40 | 20 | 108 S |
| 8.625 | 845 | 12.25 | 360 S |
| 5.5 | 5,032 | 7.875 | 1,310 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 | Mar 9, 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 42-475-36478 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-475-36478 → 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/47536478, documented in the API reference.