WELL · 42-165-35666 · DISTRICT 8
South Robertson (San Andres) U. #1309
Gaines County · Robertson N. (San Andres) field · Vertical
South Robertson (San Andres) U. #1309 (API 42-165-35666) is a well in Gaines County operated by Contango Resources Inc., completed March 20, 2001.
The RRC has issued one drilling permit, issued January 3, 2001, permitted to 4,900 ft.
It was permitted by Samedan Oil Corporation and has since transferred to Contango Resources Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, Yates, Queen, San Andres.
Its 2 leases have reported 3.45M barrels of oil and 734K mcf of gas since August 1995, last reporting in July 2026. The leases carry 115 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Samedan Oil Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 8, 2021 · 7 permits on file · (800) 960-8078
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Contango Resources Inc. |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Samedan Oil CorporationJan 3, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,900
- total depth, ft
- 1
- permits on file
- Jan 3, 2001
- last permit issued
- Mar 20, 2001
- completed
- 3.45M
- cumulative oil, bbl
- 734K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1995 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 20, 2001
- 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 115 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| South Robertson (San Andres) U. O-11-71167 | Harris (San Andres) | Crescent Energy Operating, LLC | 55 | 138K | 12.2K | Mar 2020 – Jul 2026 |
| South Robertson (San Andres) U. O-11-67419 | Robertson, N. (San Andres) | Contango Resources, Inc. | 60 | 3.31M | 722K | Aug 1995 – Jan 2022 |
Oil, barrels lease total
Last 12 months 13,212 · prior 12 15,057(-12%)
Gas, mcf lease total
Last 12 months 1,295 · prior 12 2,198(-41%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Samedan Oil CorporationAug 1995 → Dec 2002
- 2Noble Energy IncJan 2003 → Jul 2012
- 3Sheridan Production Company, LLCAug 2012 → Feb 2020
- 4FDL Operating, LLCMar 2020 → Nov 2021
- 5Contango Resources, LLCDec 2021 → Oct 2025
- 6Crescent Energy Operating, LLCNov 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 503461-99 | Drill | Samedan Oil Corporation | Dec 27, 2000 | Jan 3, 2001 | Feb 23, 2001 | 4,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-67419 | — | — | — | — |
| — | — O-11-71167 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,321 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,756 | 1,565 |
| Yates | 2,832 | 489 |
| Queen | 3,357 | -36 |
| San Andres | 4,371 | -1,050 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,579 | 4,687 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,765 | 12.25 | 900 S |
| 5.5 | 4,800 | 7.875 | 1,000 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 | Jun 2, 2023 | Mar 13, 2023 | — |
| 00 | Nov 22, 2021 | Apr 30, 2001 | Yes |
| 00 | Mar 6, 2002 | Apr 30, 2001 | Yes |
| 00 | Feb 19, 2002 | — | — |
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 42-165-35666 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-165-35666 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000093018 | H-1 Injection | Not activated | 800 | 1,650 | 4,500–4,800 |
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/16535666, documented in the API reference.