TEXAS · WELLS · ZAPATA COUNTY · CUELLAR, MARIA LEASE · API 42-505-35699 · DISTRICT 04
Cuellar Maria #19
Zapata County · Cisco-Benavides (Lobo Cons.) field · Producing · Vertical
Cuellar Maria #19 (API 42-505-35699) is a well in Zapata County operated by Hilcorp Energy Company, completed January 19, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 3, 2006, permitted to 9,400 ft.
It was permitted by Houston Exploration Company, The and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Top Lobo 1, Top Lobo 2, Top Lobo 3.
Its lease has reported 214 barrels of oil and 717K mcf of gas since December 2006, last reporting volume in April 2026.
Operator of record
Permitted by Houston Exploration Company, The; 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 | Houston Exploration Company, TheNov 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.
- 9,400
- total depth, ft
- 1
- permits on file
- Nov 3, 2006
- last permit issued
- Jan 19, 2007
- completed
- 214
- cumulative oil, bbl
- 717K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2006 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 19, 2007
- 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 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, Maria G-4-225636 | Cisco-Benavides (Lobo Cons.) | Hilcorp Energy Company | 1 | 214 | 717K | Dec 2006 – Apr 2026 |
Gas, mcf lease total
Last 12 months 20,840 · prior 12 20,846(0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Houston Exploration Company, TheDec 2006 → Jun 2007
- 2Forest Oil CorporationJul 2007 → Dec 2012
- 3Hilcorp Energy CompanyJan 2013 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 626042-99 | Drill | Houston Exploration Company, The | Sep 15, 2006 | Nov 3, 2006 | Nov 10, 2006 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 19, 2007 | Cuellar Maria G-4-225636 | Cisco-Benavides (Lobo Cons.) | Hilcorp Energy Company | Producing | 9,400 |
Formation tops
As filed on W-2/G-1. Subsea from 457 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Top Lobo 1 | 7,600 | -7,143 |
| Top Lobo 2 | 8,215 | -7,758 |
| Top Lobo 3 | 8,670 | -8,213 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,676 | 7,680 | Perforated |
| 7,689 | 7,691 | Perforated |
| 7,695 | 7,697 | Perforated |
| 7,809 | 7,813 | Perforated |
| 7,818 | 7,828 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 767 | 12.25 | 331 S |
| 7 | 6,815 | 8.75 | 400 S |
| 3.5 | 9,395 | 6.25 | 450 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 | May 15, 2007 | Mar 9, 2007 | Yes |
| 00 | Mar 29, 2007 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 12, 2010. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Top Lobo 1, Top Lobo 2, Top Lobo 3 | TIFF | 6,815 to 9,397 | Jan 12, 2010run Nov 25, 2006 | 0.78 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-505-35699 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35699 → 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/50535699, documented in the API reference.