TEXAS · WELLS · ZAPATA COUNTY · CUELLAR GU LEASE · API 42-505-35498 · DISTRICT 04
Cuellar GU #2
Zapata County · Exsun (Lobo Cons.) field · Producing · Vertical
- Fields on the latest permit · any of 6
- Exsun (Lobo Cons.) · Exsun (Wilcox 7900) · Exsun (Wilcox 9400) · Zapata (Queen City) · Zapata (Reklaw 4300) · Zapata, SE. (Wilcox)
- 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.
Cuellar GU #2 (API 42-505-35498) is a well in Zapata County operated by Hilcorp Energy Company, completed August 31, 2006 and listed as producing on the RRC schedule, shut in August 1, 2026.
The RRC has issued one drilling permit, issued February 3, 2006, permitted to 10,930 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Queen City, Carrizo, Big Blue.
Its lease has reported 151K mcf of gas since April 2006, last reporting volume in April 2026.
Operator of record
Permitted by Chesapeake Operating, 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 | Chesapeake Operating, Inc.Feb 3, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,930
- total depth, ft
- 1
- permits on file
- Feb 3, 2006
- last permit issued
- Aug 31, 2006
- completed
- 0
- cumulative oil, bbl
- 151K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · APR 2006 THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 31, 2006
- Shut in
- Aug 1, 2026
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 GU G-4-221490 | Exsun (Lobo Cons.) | Hilcorp Energy Company | 1 | 0 | 151K | Apr 2006 – Apr 2026 |
Gas, mcf lease total
Last 12 months 394 · prior 12 204(+93%)
Wells named Cuellar GU
Hilcorp Energy Company's other wells filed under this lease name in Zapata County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Apr 2006 → Jun 2012
- 2Hilcorp Energy CompanyApr 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 613624-99 | Drill | Chesapeake Operating, Inc. | Feb 3, 2006 | Feb 3, 2006 | Mar 18, 2006 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 31, 2006 | Cuellar GU G-4-221490 | Exsun (Lobo Cons.) | Hilcorp Energy Company | Producing · shut in Aug 1, 2026 | 10,930 |
Formation tops
As filed on W-2/G-1. Subsea from 326 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 1,709 | -1,383 |
| CarrizoCARRIZO WX | 4,810 | -4,484 |
| Big Blue | 6,301 | -5,975 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,590 | 9,917 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 781 | 12.25 | 274 S |
| 7 | 6,623 | 8.75 | 346 S |
| 4.5 | 10,888 | 6.25 | 420 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 | Apr 4, 2007 | Oct 27, 2006 | — |
| 00 | Mar 8, 2007 | Aug 9, 2006 | Yes |
| 00 | Nov 15, 2006 | — | — |
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 42-505-35498 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35498 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/50535498, documented in the API reference.