TEXAS · WELLS · MARTIN COUNTY · UNIVERSITY 7-28 LEASE · API 42-317-34858 · DISTRICT 7B
University 7-28 #3
Martin County · Spraberry (Trend Area) field · Producing · Vertical
- Fields on the latest permit · any of 4
- Hutex (Dean) · Lacaff (Dean) · Lacaff (Wolfcamp) · Spraberry (Trend Area)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
University 7-28 #3 (API 42-317-34858) is a well in Martin County operated by Diamondback E&P LLC, completed September 5, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 26, 2007, permitted to 10,310 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Rustler, Tansill, Yates, Grayburg.
Its lease has reported 325K barrels of oil and 906K mcf of gas since September 2007, last reporting volume in August 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 (A)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,254
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, Inc.Jan 26, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,310
- total depth, ft
- 1
- permits on file
- Jan 26, 2007
- last permit issued
- Sep 5, 2007
- completed
- 325K
- cumulative oil, bbl
- 906K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · SEP 2007 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 5, 2007
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 7-28 O-10-38408 | Spraberry (Trend Area) | Diamondback E&P LLC | 7 | 325K | 906K | Sep 2007 – Aug 2026 |
Oil, barrels lease total
Last 12 months 9,173 · prior 12 13,254(-31%)
Gas, mcf lease total
Last 12 months 26,591 · prior 12 39,241(-32%)
Wells named University 7-28
Diamondback E&P LLC's other wells filed under this lease name in Martin County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Sep 2007 → Aug 2012
- 2Enervest Operating, L.L.C.Sep 2012 → Feb 2014
- 3QEP Energy CompanyMar 2014 → Sep 2021
- 4Diamondback E&P LLCOct 2021 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 632410-99 | Drill | Chesapeake Operating, Inc. | Jan 23, 2007 | Jan 26, 2007 | Jul 5, 2007 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 5, 2007 | University 7-28 O-10-38408 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 10,310 |
Formation tops
As filed on W-2/G-1. Subsea from 2,905 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,288 | 8,575 | Perforated |
| 8,952 | 9,167 | Perforated |
| 9,575 | 9,636 | Perforated |
| 9,892 | 9,957 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,810 | 12.25 | 700 S |
| 5.5 | 10,300 | 7.875 | 400 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 | Jan 11, 2008 | Sep 26, 2007 | Yes |
| 00 | Dec 27, 2007 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Jul 28, 2010. 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 |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Rustler, Tansill, Yates, Grayburg, San Andres, Clear Fork, Spraberry, Jo Mill, Dean, Wolfcamp | TIFF | 200 to 10,314 | Jul 28, 2010run Jul 24, 2007 | 7.66 |
| RESISTIVITYSpans San Andres, Clear Fork, Spraberry, Jo Mill, Dean, Wolfcamp | TIFF | 6,500 to 10,281 | Jul 28, 2010run Jul 24, 2007 | 6.65 |
"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 42-317-34858 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-34858 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/31734858, documented in the API reference.