TEXAS · WELLS · ZAPATA COUNTY · API 42-505-36065 · DISTRICT 04
Snavely Gas Unit 4 #1
Zapata County · Zapata SE. (Wilcox) field · Directional
Snavely Gas Unit 4 #1 (API 42-505-36065) is a plugged well in Zapata County, plugged January 2, 2023, last operated by Hilcorp Energy Company.
The RRC has issued one drilling permit, issued January 14, 2008, permitted to 14,000 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including Queen City, Big Blue, Lobo (Unconfirmity), Lobo (Unconformity).
Its 2 leases have reported 57 barrels of oil and 73.6K mcf of gas since February 2008, with no volume in the three years through April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
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 Oct 2022 |
| Latest permit | Chesapeake Operating, Inc.Jan 14, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 1
- permits on file
- Jan 14, 2008
- last permit issued
- Feb 27, 2008
- completed
- 57
- cumulative oil, bbl
- 73.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Oct 2022
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 27, 2008
- Shut in
- —
- Plugged
- Jan 2, 2023
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 |
|---|---|---|---|---|---|---|
| Snavely Gas Unit 4 G-4-236364 | Exsun (Lobo Cons.) | Hilcorp Energy Company | 1 | 57 | 73.6K | Feb 2008 – Oct 2022 |
| Snavely Gas Unit 4 G-4-236385 | Zapata, SE. (Wilcox) | Hilcorp Energy Company | 1 | 0 | 0 | Feb 2008 – — |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Feb 2008 → Nov 2012
- 2Hilcorp Energy CompanyOct 2016 → Oct 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 652491-99 | Drill | Chesapeake Operating, Inc. | Jan 5, 2008 | Jan 14, 2008 | Jan 20, 2008 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 27, 2008 | Snavely Gas Unit 4 G-4-236385 | Zapata SE. (Wilcox) | Hilcorp Energy Company | Plugged | — |
| Feb 27, 2008 | Snavely Gas Unit 4 G-4-236364 | Exsun (Lobo Cons.) | Hilcorp Energy Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 420 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 2,460 | -2,040 |
| Big Blue | 6,780 | -6,360 |
| Lobo (Unconfirmity) | 8,904 | -8,484 |
| Lobo (Unconformity) | 8,904 | -8,484 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,788 | 10,140 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 770 | 12.25 | 330 S |
| 7 | 7,080 | 8.75 | 385 S |
| 4.5 | 11,403 | 6.25 | 430 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 | Jul 11, 2008 | Apr 3, 2008 | Yes |
| 00 | Jul 8, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 7, 2011. Resistivity, Sonic. 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/ACOUSTIC POROSITYSpans Big Blue, Lobo (Unconfirmity), Lobo (Unconformity) | TIFF | 7,070 to 11,447 | Apr 7, 2011run Feb 11, 2008 | 0.42 |
"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 42-505-36065 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-36065 → 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/50536065, documented in the API reference.