WELL · 42-399-33856 · DISTRICT 7
Jeffreys #1
Runnels County · Nordic (Dog Bend) field · Vertical
Jeffreys #1 (API 42-399-33856) is a plugged well in Runnels County, plugged July 16, 2015, last operated by Tcs Petroleum CO. LLC.
The RRC has issued one drilling permit, issued June 18, 1987, permitted to 4,200 ft.
It was permitted by NP/CS Corporation and has since transferred to Tcs Petroleum CO. LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Dog Bend, Fry, Gardner Sand.
Its 2 leases have reported 19.8K barrels of oil and 196K mcf of gas since January 1993, last reporting in July 2026. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by NP/CS Corporation; the EWA schedule now lists a different operator.
Abilene, TX · P-5 Y, filed Jan 5, 2026 · 11 permits on file · (325) 338-8717
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | TCS Petroleum Co. LLC |
| Production reports | TCS Petroleum Co., LLCthrough Apr 2026 |
| Latest permit | NP/CS CorporationJun 18, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,200
- total depth, ft
- 1
- permits on file
- Jun 18, 1987
- last permit issued
- Oct 15, 1987
- completed
- 19.8K
- cumulative oil, bbl
- 196K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 15, 1987
- Shut in
- —
- Plugged
- Jul 16, 2015
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Jeffreys O-9-9635 | Nordic (Dog Bend) | TCS Petroleum Co., LLC | 9 | 19.8K | 196K | Jan 1993 – Jul 2026 |
| Jeffrey "A" O-9-12302 | Nordic (Dog Bend) | New Horizon Exploration, Inc. | 2 | 0 | 0 | Jan 1993 – Jan 1993 |
Oil, barrels lease total
Last 12 months 432 · prior 12 403(+7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1New Horizon Exploration, Inc.Jan 1993 → Dec 1997
- 2Ducky Oil CorporationJan 1998 → Dec 1998
- 3R & R Well ServiceJan 1999 → Nov 2002
- 4R & R Well Service, Inc.Dec 2002 → Jun 2024
- 5Big D Energy CompanyMar 2007 → Aug 2015
- 6TCS Petroleum Co., LLCJul 2024 → Apr 2026
- 7Ohlhausen Oil CompanySep 2025 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 331798-99 | Drill | NP/CS Corporation | Jun 18, 1987 | Jun 18, 1987 | — | 4,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-9635 | — | — | — | — |
| — | — O-9-12302 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Dog Bend | 3,275 |
| Fry | 3,525 |
| Gardner Sand | 3,713 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,276 | 3,282 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 128 | 12.25 | 100 S |
| 4.5 | 3,850 | 7.875 | 775 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 | Dec 3, 1992 | Oct 27, 1987 | Yes |
| 00 | Nov 12, 1987 | Oct 27, 1987 | Yes |
| 00 | Nov 3, 1987 | — | — |
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 42-399-33856 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-399-33856 → 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/39933856, documented in the API reference.