WELL · 42-461-31828 · DISTRICT 7
Jacobs Livestock C #1
Upton County · Heluma SE (Devonian) field · Vertical
Jacobs Livestock C #1 (API 42-461-31828) is a well in Upton County operated by Sun Expl. & Prod. CO.-Midland, completed February 18, 1982.
The RRC has issued 3 drilling permits between 1981 and 2005, permitted to 9,500 ft.
It was permitted by Samson Lone Star LP and has since transferred to Sun Expl. & Prod. CO.-Midland on the wellbore schedule.
Completion filings report one formation top, including Strawn.
Its 2 leases have reported 121K barrels of oil and 261K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Samson Lone Star LP; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Oct 29, 1997 · 815 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sun Expl. & Prod. Co.-Midland |
| Production reports | Legacy Reserves Operating LPthrough Nov 2017 |
| Latest permit | Samson Lone Star LPMay 2, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 3
- permits on file
- May 2, 2005
- last permit issued
- Feb 18, 1982
- completed
- 121K
- cumulative oil, bbl
- 261K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 18, 1982
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Jacobs Livestock "C" O-9-11173 | Heluma (Penn.) | Extex Operating Company | 1 | 78.3K | 99.3K | Jan 1993 – Jul 2026 |
| Jacobs Livestock C O-9-15720 | Heluma, SE (Devonian) | Extex Operating Company | 1 | 42.8K | 162K | Apr 2005 – 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.
- 1Oryx Energy CompanyJan 1993 → Mar 1995
- 2Samson Hydrocarbons CompanyApr 1995 → Jul 1996
- 3Samson Lone Star LPAug 1996 → Jun 2007
- 4Samson Lone Star, LLCJul 2007 → Dec 2010
- 5Three Rivers Operating Co LLCJan 2011 → Jul 2012
- 6COG Operating LLCAug 2012 → Dec 2012
- 7Legacy Reserves Operating LPJan 2013 → Nov 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 561274-99 | Recompletion | Samson Lone Star LP | Apr 29, 2005 | May 2, 2005 | Apr 12, 2005 | 9,166 |
| 261624-99 | Recompletion | Sun Expl. & Prod. Co.-Midland | Nov 2, 1984 | Dec 19, 1984 | — | 8,900 |
| 137003-99 | Drill | Sun Expl. & Prod. Co.-Midland | Oct 19, 1981 | Oct 19, 1981 | Oct 26, 1981 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-11173 | — | — | — | — |
| — | — O-9-15720 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,116 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Strawn | 8,089 | -4,973 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,021 | 8,266 | Perforated |
| 8,178 | 8,266 | Perforated |
| 8,258 | 8,266 | Perforated |
| 8,950 | 9,100 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 650 | 17.5 | 725 S |
| 8.625 | 3,738 | 11.5 | 1,550 S |
| 2.875 | 8,736 | — | — |
| 5.5 | 9,492 | 7.875 | 1,440 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 | May 4, 2007 | May 10, 2005 | — |
| 00 | Jan 17, 2007 | — | — |
| 00 | Dec 22, 1993 | Oct 18, 1993 | — |
| 00 | May 18, 1990 | Apr 27, 1990 | — |
| 00 | Nov 26, 1985 | Nov 12, 1985 | — |
| 00 | Feb 25, 1985 | Feb 15, 1985 | — |
| 00 | Feb 21, 1985 | — | — |
| 00 | Jan 12, 1984 | May 12, 1982 | — |
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 42-461-31828 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-31828 → 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/46131828, documented in the API reference.