TEXAS · WELLS · ZAPATA COUNTY · LEO GAS UNIT LEASE · API 42-505-36523 · DISTRICT 04
Leo Gas Unit #1
Zapata County · Jennings (Wilcox Consolidated) field · Producing · Vertical
Leo Gas Unit #1 (API 42-505-36523) is a well in Zapata County operated by Killam Oil CO. Ltd., completed August 10, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 18, 2010, permitted to 9,000 ft.
Completion filings report 3 formation tops, including Sparta, Queen City, W-4.
Its lease has reported 690K mcf of gas since August 2010, last reporting volume in April 2026.
Operator of record
- Based in
- Laredo, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 9, 2026
- Permits on file
- 837
- Phone
- (956) 724-7141
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Killam Oil Co. Ltd. |
| Production reports | Killam Oil Co., Ltd.through Apr 2026 |
| Latest permit | Killam Oil Co., Ltd.Jun 18, 2010 |
- 9,000
- total depth, ft
- 1
- permits on file
- Jun 18, 2010
- last permit issued
- Aug 10, 2010
- completed
- 0
- cumulative oil, bbl
- 690K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 10, 2010
- 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 |
|---|---|---|---|---|---|---|
| Leo Gas Unit G-4-261376 | Jennings (Wilcox Consolidated) | Killam Oil Co., Ltd. | 1 | 0 | 690K | Aug 2010 – Apr 2026 |
Gas, mcf lease total
Last 12 months 2,453 · prior 12 3,160(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Killam Oil Co., Ltd.Sep 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 697798-99 | Drill | Killam Oil Co., Ltd. | Jun 17, 2010 | Jun 18, 2010 | Jul 1, 2010 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 10, 2010 | Leo Gas Unit G-4-261376 | Jennings (Wilcox Consolidated) | Killam Oil Co. Ltd. | Producing | 9,000 |
Formation tops
As filed on W-2/G-1. Subsea from 486 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Sparta | 3,820 | -3,334 |
| Queen City | 4,440 | -3,954 |
| W-4 | 8,300 | -7,814 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,305 | 8,310 | Perforated |
| 8,344 | 8,350 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 725 | 12.25 | 333 S |
| 7 | 7,097 | 8.75 | 175 S |
| 2.875 | 9,000 | 6.125 | 324 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 | Nov 28, 2011 | Jun 23, 2011 | Yes |
Well logs
2 logs loaded from the RRC's log index, the latest received Jul 30, 2013. 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 Queen City, W-4 | TIFF | 4,700 to 9,009 | Jul 30, 2013run Jul 21, 2010 | 0.39 |
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Sparta, Queen City | TIFF | 713 to 4,796 | Jul 30, 2013run Jul 14, 2010 | 0.36 |
"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 42-505-36523 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-36523 → 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/50536523, documented in the API reference.