WELL · 42-003-35172 · DISTRICT 8
Marlo 11 #1
Andrews County · Shafter Lake N. (San Andres) field · Vertical
Marlo 11 #1 (API 42-003-35172) is a plugged well in Andrews County, plugged December 28, 2011, last operated by Sandridge Expl. And Prod. LLC.
The RRC has issued 2 drilling permits between 1985 and 2011, permitted to 5,000 ft.
Completion filings report one formation top, including San Andres.
Its 2 leases have reported 428 barrels of oil and 65 mcf of gas since January 1993, last reporting in August 2012. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Oklahoma City, OK · P-5 Y, filed May 4, 2026 · 3,454 permits on file · (405) 429-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sandridge Expl. and Prod. LLC |
| Production reports | Dakota Resources, Inc. (I)through May 1994 |
| Latest permit | Sandridge Expl. and Prod., LLCMay 16, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,000
- total depth, ft
- 2
- permits on file
- May 16, 2011
- last permit issued
- Oct 24, 1985
- completed
- 428
- cumulative oil, bbl
- 65
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 24, 1985
- Shut in
- —
- Plugged
- Dec 28, 2011
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Marlo "11" O-10-41633 | Shafter Lake, N. (San Andres) | Sandridge Expl. and Prod., LLC | 2 | 0 | 0 | May 2011 – Aug 2012 |
| Marlo -11- O-10-30192 | Shafter Lake (San Andres) | Sandridge Expl. and Prod., LLC | 2 | 428 | 65 | Jan 1993 – Jul 2012 |
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.
- 1Dakota Resources, Inc. (I)Jan 1993 → Apr 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 716229-99 | Field transfer | Sandridge Expl. and Prod., LLC | May 12, 2011 | May 16, 2011 | Sep 27, 1985 | 5,000 |
| 284766-99 | Drill | Drilmor, Inc. | Sep 9, 1985 | Sep 10, 1985 | Sep 28, 1985 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-30192 | — | — | — | — |
| — | — O-10-41633 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,183 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,492 | -1,309 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,423 | 4,537 | Perforated |
| 4,601 | 4,744 | Perforated |
| 4,798 | 4,859 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,614 | 12.25 | 700 S |
| 5.5 | 4,900 | 7.875 | 800 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 | Sep 24, 2012 | Jul 20, 2011 | — |
| 00 | Jul 18, 2012 | Oct 30, 1985 | Yes |
| 00 | Nov 25, 1985 | Oct 30, 1985 | Yes |
| 00 | Nov 7, 1985 | — | — |
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 42-003-35172 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-35172 → 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/00335172, documented in the API reference.