WELL · 42-501-36783 · DISTRICT 8
Cornell Unit #3186
Yoakum County · Wasson field · Producing · Vertical
Cornell Unit #3186 (API 42-501-36783) is a well in Yoakum County operated by Hilcorp Energy Company, completed August 16, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 29, 2017, permitted to 5,750 ft.
It was permitted by Xto Energy Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Salado, Yates, Seven Rivers.
Its lease has reported 20.3M barrels of oil and 35.4M mcf of gas since January 1993, last reporting in July 2026. The lease carries 268 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by XTO Energy Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | XTO Energy Inc.Jun 29, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,750
- total depth, ft
- 1
- permits on file
- Jun 29, 2017
- last permit issued
- Aug 16, 2017
- completed
- 20.3M
- cumulative oil, bbl
- 35.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 16, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
33.004483, -102.877220
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Yoakum County.
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 268 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cornell Unit O-11-19453 | Wasson | Hilcorp Energy Company | 268 | 20.3M | 35.4M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 486,391 · prior 12 408,638(+19%)
Gas, mcf lease total
Last 12 months 594,808 · prior 12 645,030(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Jul 2000
- 3Cross Timbers Operating CompanyAug 2000 → May 2001
- 4XTO Energy Inc.Jun 2001 → Mar 2025
- 5Hilcorp Energy CompanyApr 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 823763-99 | Drill | XTO Energy Inc. | Feb 27, 2017 | Jun 29, 2017 | Jul 19, 2017 | 5,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-19453 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,603 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,158 | 1,445 |
| Salado | 2,201 | 1,402 |
| Yates | 2,910 | 693 |
| Seven Rivers | 3,058 | 545 |
| Queen | 3,700 | -97 |
| Grayburg | 4,373 | -770 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,633 | -1,030 |
| M-1 | 4,928 | -1,325 |
| Glorieta | — | — |
| Santa RosaRED BED-SANTA ROSA | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,934 | 5,260 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,175 | 11 | 695 S |
| 5.5 | 5,582 | 7.875 | 1,225 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Dec 21, 2017 | Dec 14, 2017 | 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 42-501-36783 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-36783 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Cornell Unit42-501-37049
1.1 KM · XTO Energy Inc. · Section with this well →
| Yates | 2,917 | 697 |
| San Andres | 4,616 | -1,002 |
| Glorieta | — | |
| Leonard | — | |
| Pennsylvanian | — | |
| Santa Rosa | — | |
| Strawn | — | |
| Wichita-Albany | — |
10 TOPS · FIRST 8
Denver Unit42-501-35206
1.3 KM · Occidental Permian Ltd. · Section with this well →
| San Andres | 4,332 | -714 |
Denver Unit42-501-35205
1.4 KM · Occidental Permian Ltd. · Section with this well →
| San Andres | 4,338 | -719 |
Willard Unit42-501-30761
1.9 KM · OXY USA WTP LP · Section with this well →
| Santa Rosa | 1,100 | 2,494 |
| Yates | 2,800 | 794 |
| San Andres | 4,500 | -906 |
Cornell Unit42-501-36784
2.2 KM · XTO Energy Inc. · Section with this well →
| Rustler | 2,154 | 1,449 |
| Salado | 2,197 | 1,406 |
| Seven Rivers | 3,060 | 543 |
| Queen | 3,666 | -63 |
| Grayburg | 4,339 | -736 |
| San Andres | 4,581 | -978 |
| M-1 | 4,867 | -1,264 |
| Yates | — |
10 TOPS · FIRST 8
Willard Unit42-501-36968
2.3 KM · OXY USA WTP LP · Section with this well →
| Santa Rosa | 1,372 | 2,209 |
| Yates | 2,889 | 692 |
| San Andres | 4,345 | -764 |
| Wolfcamp | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Roberts Unit42-501-37683
3.0 KM · Hilcorp Energy Company · Section with this well →
| Yates | 2,931 | 703 |
| Grayburg | 4,173 | -539 |
| San Andres | 4,386 | -752 |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Pennsylvanian | — | |
| Santa Rosa | — |
10 TOPS · FIRST 8
Willard Unit42-501-36936
3.1 KM · OXY USA WTP LP · Section with this well →
| Santa Rosa | 1,431 | 2,180 |
| Yates | 2,946 | 665 |
| San Andres | 4,457 | -846 |
| Wolfcamp | — | |
| Wichita-Albany | — | |
| Pennsylvanian | — | |
| Leonard | — | |
| Glorieta | — |
10 TOPS · FIRST 8
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/50136783, documented in the API reference.