WELL · 42-317-36090 · DISTRICT 8
University 7-31B #5
Martin County · Spraberry (Trend Area) field · Shut IN · Vertical
University 7-31b #5 (API 42-317-36090) is a well in Martin County operated by Diamondback E&P LLC, completed February 19, 2011 and listed as shut in on the RRC schedule, shut in April 1, 2017.
The RRC has issued one drilling permit (amended once), issued June 16, 2010, permitted to 10,300 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Upr Spraberry, Lwr Spraberry, Wolfcamp.
Its lease has reported 165K barrels of oil and 654K mcf of gas since January 2009, last reporting in July 2026. The lease carries 7 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
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | QEP Energy Companythrough Nov 2018 |
| Latest permit | Chesapeake Operating, Inc.Jun 16, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,300
- total depth, ft
- 2
- permits on file
- Jun 16, 2010
- last permit issued
- Feb 19, 2011
- completed
- 165K
- cumulative oil, bbl
- 654K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 19, 2011
- Shut in
- Apr 1, 2017
- 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; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 7-31B O-10-39191 | Spraberry (Trend Area) | Diamondback E&P LLC | 7 | 165K | 654K | Jan 2009 – Jul 2026 |
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.Jan 2009 → Aug 2012
- 2Enervest Operating, L.L.C.Sep 2012 → Feb 2014
- 3QEP Energy CompanyMar 2014 → Nov 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 697640-98 | Drill | Chesapeake Operating, Inc. | Aug 27, 2010 | Jun 16, 2010 | Oct 1, 2010 | 18,000 |
| 697640-99 | Drill | Chesapeake Operating, Inc. | Jun 15, 2010 | Jun 16, 2010 | Sep 30, 2010 | 18,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 19, 2011 | University 7-31B O-10-39191 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut IN · shut in Apr 1, 2017 | 10,300 |
Formation tops
As filed on W-2/G-1. Subsea from 2,921 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Upr Spraberry | 8,347 | -5,426 |
| LWR Spraberry | 8,907 | -5,986 |
| Wolfcamp | 9,816 | -6,895 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,854 | 10,128 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,800 | 11 | 930 S |
| 5.5 | 10,300 | 7.875 | 1,915 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 | Nov 30, 2012 | Apr 19, 2011 | 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 42-317-36090 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-36090 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
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/31736090, documented in the API reference.