WELL · 42-237-04049 · DISTRICT 9
Jackson Heirs B #4
Jack County · Rusmag (Ken Sand) field · Vertical
Jackson Heirs B #4 (API 42-237-04049) is a well in Jack County operated by Century Petroleum Inc., completed April 1, 1992.
The RRC has issued 2 drilling permits between 1988 and 1992, permitted to 5,550 ft.
It was permitted by Maguire Oil Company and has since transferred to Century Petroleum Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Ken Sand, Top Of Ken Sand, Smith Sand, Top Of Smith Sand.
Its 3 leases have reported 8.47K barrels of oil and 371K 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 Maguire Oil Company; the EWA schedule now lists a different operator.
- Based in
- Jacksboro, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 10, 2026
- Permits on file
- 44
- Phone
- (940) 374-3375
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Century Petroleum Inc. |
| Production reports | Century Petroleum, Inc.through Apr 2026 |
| Latest permit | Maguire Oil CompanyMar 5, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,550
- total depth, ft
- 2
- permits on file
- Mar 5, 1992
- last permit issued
- Apr 1, 1992
- completed
- 8.47K
- cumulative oil, bbl
- 371K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 1, 1992
- 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 3 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 |
|---|---|---|---|---|---|---|
| Jackson Heirs "B" G-13-279828 | Rusmag (Ken Sand) | Century Petroleum, Inc. | 1 | 0 | 47.1K | Mar 2016 – Jul 2026 |
| Jackson Heirs "B" O-13-28282 | Rusmag (Ken Sand) | Century Petroleum, Inc. | 1 | 8.47K | 324K | Jan 1993 – Jul 2026 |
| — G-13-129433 | — | — | 0 | 0 | 0 | — |
Gas, mcf lease total
Last 12 months 3,704 · prior 12 4,086(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Maguire Oil CompanyJan 1993 → Jul 2004
- 23-R Production, Inc.Sep 2004 → Oct 2004
- 3EOG Resources, Inc.Nov 2004 → Apr 2009
- 4Century Petroleum, Inc.Jun 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 397247-99 | Recompletion | Maguire Oil Company | Mar 5, 1992 | Mar 5, 1992 | Mar 25, 1992 | 5,550 |
| 352435-99 | Recompletion | Maguire Oil Company | Oct 19, 1988 | Oct 21, 1988 | — | 5,550 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-129433 | — | — | — | — |
| — | — G-13-279828 | — | — | — | — |
| — | — O-13-28282 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 978 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Ken Sand | 4,754 | -3,776 |
| Top of Ken Sand | 4,754 | -3,776 |
| Smith Sand | 4,841 | -3,863 |
| Top of Smith Sand | 4,841 | -3,863 |
| Smith Sand | 4,842 | -3,864 |
| Top of Smith Sand | 4,842 | -3,864 |
| Base of Smith Sand | 4,886 | -3,908 |
| GC Sand | 5,100 | -4,122 |
| Top of GC Sand | 5,100 | -4,122 |
| Melinda Sand | 5,366 | -4,388 |
| Stray Sand | 5,410 | -4,432 |
| Top of Stray Sand | 5,410 | -4,432 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,756 | 4,766 | Perforated |
| 5,102 | 5,108 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 116 | 13.75 | 90 S |
| 5.5 | 437 | 8.75 | 125 S |
| 5.5 | 4,437 | 8.75 | 125 S |
| 4.5 | 5,545 | 4.75 | 150 S |
| 4.5 | 5,545 | 6.25 | 150 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 9, 2016 | Mar 22, 2016 | — |
| 00 | Jun 5, 1992 | May 11, 1992 | — |
| 00 | Apr 23, 1992 | Apr 10, 1992 | Yes |
| 00 | Apr 17, 1992 | — | — |
| 00 | Mar 9, 1989 | Dec 21, 1988 | Yes |
| 00 | Mar 8, 1989 | Jan 27, 1989 | — |
| 00 | Jan 19, 1989 | — | — |
| 00 | Jan 12, 1984 | — | — |
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 42-237-04049 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-237-04049 → 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/23704049, documented in the API reference.