WELL · 42-505-34722 · DISTRICT 4
Cuellar G.U. #1
Zapata County · Exsun (Lobo Cons.) field · Producing · Vertical
Cuellar G.U. #1 (API 42-505-34722) is a well in Zapata County operated by Hilcorp Energy Company, completed November 1, 2003 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 22, 2003, permitted to 12,000 ft.
It was permitted by Laredo Energy, LP and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Queen City, Carrizo, Cerrizo Wilcox.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Laredo Energy, LP; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Laredo Energy, LPApr 22, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Apr 22, 2003
- last permit issued
- Nov 1, 2003
- completed
- 0
- cumulative oil, bbl
- 2.34M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2003 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 1, 2003
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Cuellar G.U. G-4-201075 | Exsun (Lobo Cons.) | Hilcorp Energy Company | 1 | 0 | 2.34M | Nov 2003 – Jul 2026 |
Gas, mcf lease total
Last 12 months 22,971 · prior 12 30,513(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Nov 2003 → Aug 2014
- 2Hilcorp Energy CompanySep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 531009-98 | Drill | Laredo Energy, LP | Apr 24, 2003 | Apr 22, 2003 | Apr 24, 2003 | 12,000 |
| 531009-99 | Drill | Laredo Energy, LP | Apr 22, 2003 | Apr 22, 2003 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-201075 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 352 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 1,940 | -1,588 |
| CarrizoCARRIZO WILCOX | 4,810 | -4,458 |
| Cerrizo Wilcox | 4,810 | -4,458 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,738 | 9,994 | Perforated |
| 9,952 | 9,994 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 750 | 12.25 | 305 S |
| 7 | 6,601 | 8.75 | 540 S |
| 4.5 | 11,700 | 6.25 | 525 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 20, 2008 | Feb 29, 2008 | — |
| 00 | Jul 1, 2004 | Dec 15, 2003 | Yes |
| 00 | May 20, 2004 | — | — |
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 42-505-34722 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-34722 → 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/50534722, documented in the API reference.