WELL · 42-505-31841 · DISTRICT 4
Jennings Ranch #4
Zapata County · Jennings Ranch (Wilcox 9100) field · Vertical
Jennings Ranch #4 (API 42-505-31841) is a plugged well in Zapata County, plugged January 29, 2007, last operated by Transamerican Natural Gas Corp..
The RRC has issued one drilling permit, issued July 11, 1984, permitted to 13,700 ft.
It was permitted by Ghr Enrgy.Corp-Amer.Coastal Corp and has since transferred to Transamerican Natural Gas Corp. on the wellbore schedule.
Completion filings report 4 formation tops, including Queen City, Wilcox, Lobo Uncon., Wills Point.
Operator of record
Transamerican Natural Gas Corp.
Permitted by GHR Enrgy.corp-Amer.coastal Corp; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Aug 4, 2025 · 772 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Transamerican Natural Gas Corp. |
| Production reports | Conoco Inc.through Apr 1999 |
| Latest permit | GHR Enrgy.corp-Amer.coastal CorpJul 11, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,700
- total depth, ft
- 1
- permits on file
- Jul 11, 1984
- last permit issued
- Aug 24, 1985
- completed
- 0
- cumulative oil, bbl
- 277K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2007
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 24, 1985
- Shut in
- —
- Plugged
- Jan 29, 2007
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Jennings Ranch G-4-118600 | Jennings Ranch (Lobo Cons.) | Chesapeake Operating, Inc. | 1 | 0 | 277K | Jan 1993 – Jan 2007 |
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.
- 1Transamerican Natural Gas Corp.Jan 1993 → Jan 1995
- 2Transtexas Gas CorporationFeb 1995 → Apr 1997
- 3Conoco Inc.Sep 1997 → Apr 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 244940-99 | Drill | GHR Enrgy.corp-Amer.coastal Corp | Jul 10, 1984 | Jul 11, 1984 | — | 13,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-118600 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 472 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 3,000 | -2,528 |
| WilcoxWILCOX (CARRIZO) | 5,650 | -5,178 |
| WilcoxLOWER WILCOX | 7,200 | -6,728 |
| Lobo Uncon. | 11,100 | -10,628 |
| Wills Point | 13,200 | -12,728 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,759 | 9,334 | Perforated |
| 12,443 | 13,087 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 747 | 14.75 | 437 S |
| 7.625 | 7,915 | 9.875 | 785 S |
| 5 | 13,233 | 6.75 | 650 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 23, 1988 | Apr 29, 1988 | Yes |
| 00 | Nov 6, 1985 | Sep 30, 1985 | Yes |
| 00 | Nov 1, 1985 | — | — |
| 00 | Oct 8, 1985 | Sep 20, 1985 | Yes |
| 00 | Oct 1, 1985 | — | — |
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 42-505-31841 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-31841 → 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/50531841, documented in the API reference.