WELL · 42-173-31436 · DISTRICT 8
Frysak #1
Glasscock County · Saint Lawrence (Strawn) field · Vertical
Frysak #1 (API 42-173-31436) is a plugged well in Glasscock County, plugged January 14, 2011, last operated by Sundown Energy LP.
The RRC has issued one drilling permit, issued July 13, 1983, permitted to 11,035 ft.
It was permitted by L & B Oil CO. Inc. and has since transferred to Sundown Energy LP on the wellbore schedule.
Completion filings report 6 formation tops, including Dean, Strawn, Woodford, Devonian.
Its 2 leases have reported 181 barrels of oil and 133K mcf of gas since January 1993, last reporting in January 2011. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by L & B Oil Co. Inc.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 3, 2026
- Permits on file
- 300
- Phone
- (214) 368-6100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sundown Energy LP |
| Production reports | Sundown Energy LPthrough Jan 2009 |
| Latest permit | L & B Oil Co. Inc.Jul 13, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,035
- total depth, ft
- 1
- permits on file
- Jul 13, 1983
- last permit issued
- Oct 27, 1983
- completed
- 181
- cumulative oil, bbl
- 133K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 27, 1983
- Shut in
- —
- Plugged
- Jan 14, 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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Frysak G-10-146867 | Saint Lawrence (Strawn) | Sundown Energy LP | 1 | 0 | 60.9K | Sep 1993 – Jan 2011 |
| Frysak O-10-28518 | Saint Lawrence (Strawn) | Costilla Petroleum Corporation | 4 | 181 | 72K | Jan 1993 – Mar 1994 |
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.
- 1Costilla Petroleum CorporationJan 1993 → Jan 1997
- 2Costilla Energy, Inc.Feb 1997 → Dec 1997
- 3Concho Resources Inc.Jan 1998 → Jun 2001
- 4Devon Energy Production Co, L.P.Jul 2001 → Jun 2002
- 5Jetta Operating Company, Inc.Jul 2002 → Jan 2005
- 6Sundown Energy LPFeb 2005 → Jan 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 201384-99 | Drill | L & B Oil Co. Inc. | Nov 28, 1983 | Jul 13, 1983 | — | 11,035 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-146867 | — | — | — | — |
| — | — O-10-28518 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,692 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,946 | 9,960 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 416 | 17.5 | 425 S |
| 9.625 | 3,300 | 12.25 | 400 S |
| 2.375 | 9,848 | — | — |
| 5.5 | 11,035 | 8.75 | 1,113 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 7, 1994 | Oct 4, 1993 | — |
| 00 | Oct 27, 1993 | — | — |
| 00 | Jan 12, 1984 | Nov 21, 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 42-173-31436 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31436 → 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/17331436, documented in the API reference.