WELL · 42-181-30966 · DISTRICT 9
Marilyn #1
Grayson County · Perrin N. Afb (Cordell Sd.) field · Vertical
Marilyn #1 (API 42-181-30966) is a well in Grayson County operated by Samson Lone Star LLC, completed July 30, 1983.
The RRC has issued 3 drilling permits between 1983 and 2012, permitted to 10,800 ft.
Completion filings report 8 formation tops, including Gray Deese, Dornick Hills, Atoka, Davis.
Its 3 leases have reported 123K barrels of oil and 191K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Tulsa, OK · P-5 Y, filed Oct 4, 2025 · 1,290 permits on file · (866) 817-1500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Samson Lone Star LLC |
| Production reports | BKM Productionthrough Apr 2026 |
| Latest permit | Samson Lone Star, LLCMay 17, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,800
- total depth, ft
- 3
- permits on file
- May 17, 2012
- last permit issued
- Jul 30, 1983
- completed
- 123K
- cumulative oil, bbl
- 191K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 30, 1983
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Marilyn O-13-29075 | Perrin, N. Afb (Baker SD) | BKM Production | 1 | 120K | 152K | Nov 1995 – Jul 2026 |
| Marilyn O-13-32230 | Perrin, N. Afb (Cordell Sd.) | BKM Production | 1 | 0 | 0 | Jun 2012 – Sep 2019 |
| Marilyn O-13-23462 | Perrin, N. Afb (Cordell Sd.) | Samson Lone Star, LLC | 1 | 3.2K | 39.1K | Jan 1993 – Mar 2008 |
Oil, barrels lease total
Last 12 months 4,137 · prior 12 4,110(+1%)
Gas, mcf lease total
Last 12 months 6,814 · prior 12 7,573(-10%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Geodyne Operating CompanyJan 1993 → Mar 1993
- 2Samson Resources CompanyApr 1993 → Mar 1995
- 3Samson Hydrocarbons CompanyApr 1995 → Jul 1996
- 4Samson Lone Star LPAug 1996 → Jun 2007
- 5Samson Lone Star, LLCJul 2007 → Sep 2014
- 6Arrow Rock Energy, LLCOct 2014 → Mar 2018
- 7White Marlin Operating Co, LLCApr 2018 → Aug 2018
- 8BKM ProductionSep 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 740214-99 | Recompletion | Samson Lone Star, LLC | May 8, 2012 | May 17, 2012 | Jun 4, 2012 | 10,670 |
| 438138-99 | Recompletion | Samson Hydrocarbons Company | Jul 24, 1995 | Sep 22, 1995 | Sep 26, 1995 | 10,670 |
| 198347-99 | Drill | American Quasar Petroleum Co. | Jun 15, 1983 | Jun 15, 1983 | — | 10,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-23462 | — | — | — | — |
| — | — O-13-29075 | — | — | — | — |
| — | — O-13-32230 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 683 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Gray Deese | 7,280 | -6,597 |
| Dornick Hills | 8,070 | -7,387 |
| Atoka | 8,800 | -8,117 |
| Davis | 9,100 | -8,417 |
| Davis Sand | 9,100 | -8,417 |
| Cordell | 9,720 | -9,037 |
| Cordell Sand | 9,720 | -9,037 |
| PennsylvanianPENN UNC | 10,620 | -9,937 |
| PennsylvanianPENN. UNCONFORMITY | 10,620 | -9,937 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,474 | 8,480 | Perforated |
| 8,498 | 8,512 | Perforated |
| 9,815 | 9,832 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,960 | 12.25 | 1,200 S |
| 2.875 | 9,484 | — | — |
| 5.5 | 10,670 | 7.875 | 1,600 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 | Jan 16, 2013 | Jul 11, 2012 | — |
| 00 | Jan 16, 2013 | — | — |
| 00 | Mar 14, 1996 | Nov 27, 1995 | Yes |
| 00 | Jan 30, 1996 | — | — |
| 00 | Jan 12, 1984 | Aug 8, 1983 | — |
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 42-181-30966 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-181-30966 → 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/18130966, documented in the API reference.