TEXAS · WELLS · GLASSCOCK COUNTY · J.E. COX LEASE · API 42-173-35144 · DISTRICT 7B
J.E. Cox #3307HU
Glasscock County · Spraberry (Trend Area) field · Producing · Horizontal
J.E. Cox #3307HU (API 42-173-35144) is a horizontal well in Glasscock County operated by Crescent Energy Operating LLC, completed October 3, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 12, 2012, permitted to 7,962 ft.
It was permitted by Laredo Petroleum, Inc. and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Spraberry, Wolfcamp.
Its lease has reported 1.92M barrels of oil and 8.59M mcf of gas since October 2010, last reporting volume in April 2026. The lease carries 20 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Laredo Petroleum, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Laredo Petroleum, Inc.Jul 12, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,962
- total depth, ft
- 1
- permits on file
- Jul 12, 2012
- last permit issued
- Oct 3, 2012
- completed
- 1.92M
- cumulative oil, bbl
- 8.59M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 3, 2012
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (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; they carry 20 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| J.E. Cox O-10-40834 | Spraberry (Trend Area) | Crescent Energy Operating, LLC | 20 | 1.92M | 8.59M | Oct 2010 – Apr 2026 |
Gas, mcf lease total
Last 12 months 410,450 · prior 12 314,862(+30%)
Oil, barrels lease total
Last 12 months 34,425 · prior 12 31,648(+9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Laredo Petroleum, Inc.Oct 2010 → Jan 2023
- 2Vital Energy, Inc.Feb 2023 → Dec 2025
- 3Crescent Energy Operating, LLCJan 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 743954-99 | Drill | Laredo Petroleum, Inc. | Jul 3, 2012 | Jul 12, 2012 | Aug 5, 2012 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 3, 2012 | J.E. Cox O-10-40834 | Spraberry (Trend Area) | Crescent Energy Operating LLC | Producing | 7,962 |
Formation tops
As filed on W-2/G-1. Subsea from 2,697 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,936 | 15,123 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 540 | 20 | 500 S |
| 10.75 | 2,930 | 14.75 | 1,175 S |
| 7.625 | 7,541 | 9.875 | 650 S |
| 5.5 | 15,226 | 6.75 | 470 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 | Mar 26, 2014 | Oct 23, 2013 | Yes |
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 42-173-35144 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-35144 → 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/17335144, documented in the API reference.