TEXAS · WELLS · ZAPATA COUNTY · API 42-505-34572 · DISTRICT 04
Jennings Ranch D #10
Zapata County · Charco (9900) field · SWR-10-Well · Vertical
- Fields on the latest permit · any of 2
- Charco (9900) · Jennings Ranch (Lobo Cons.)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Jennings Ranch D #10 (API 42-505-34572) is a well in Zapata County operated by Hilcorp Energy Company, completed October 3, 2002 and listed as swr-10-well on the RRC schedule.
The RRC has issued one drilling permit, issued June 24, 2002, permitted to 12,600 ft.
It was permitted by Conoco Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Perdido, Wilcox, Wills Point.
Its 2 leases have reported 170 barrels of oil and 2.55M mcf of gas since October 2002, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Conoco Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,458
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Conoco Inc.Jun 24, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,600
- total depth, ft
- 1
- permits on file
- Jun 24, 2002
- last permit issued
- Oct 3, 2002
- completed
- 170
- cumulative oil, bbl
- 2.55M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2002 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 3, 2002
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 |
|---|---|---|---|---|---|---|
| Jennings Ranch D G-4-191823 | Jennings Ranch (Lobo Cons.) | Hilcorp Energy Company | 1 | 170 | 2.55M | Oct 2002 – Apr 2026 |
| Jennings Ranch D G-4-191824 | Charco (9900) | Hilcorp Energy Company | 1 | 0 | 0 | Oct 2002 – — |
Gas, mcf lease total
Last 12 months 24,697 · prior 12 39,891(-38%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Conoco Inc.Oct 2002 → Dec 2002
- 2Conocophillips CompanyJan 2003 → Dec 2015
- 3Hilcorp Energy CompanyJan 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 521326-99 | Drill | Conoco Inc. | Jun 24, 2002 | Jun 24, 2002 | Aug 15, 2002 | 13,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 3, 2002 | Jennings Ranch D G-4-191824 | Charco (9900) | Hilcorp Energy Company | SWR-10-Well · shut in Oct 1, 2002 | 12,600 |
| Oct 3, 2002 | Jennings Ranch D G-4-191823 | Jennings Ranch (Lobo Cons.) | Hilcorp Energy Company | Producing | 12,600 |
Formation tops
As filed on W-2/G-1. Subsea from 429 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Perdido | 9,896 | -9,467 |
| WilcoxTOP OF LOWER WILCOX | 11,169 | -10,740 |
| Wills Point | 12,294 | -11,865 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,026 | 10,057 | Perforated |
| 10,102 | 11,457 | Perforated |
| 11,568 | 11,849 | Perforated |
| 12,193 | 12,218 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 868 | 12.25 | 304 S |
| 7 | 8,933 | 8.75 | 205 S |
| 4.5 | 12,570 | 6.25 | 365 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 15, 2003 | Nov 20, 2002 | Yes |
| 00 | Dec 12, 2002 | — | — |
Well logs
The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.
Open the RRC's log search for this well ↗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 42-505-34572 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-34572 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50534572, documented in the API reference.