TEXAS · WELLS · REAGAN COUNTY · UNIVERSITY 18-58 LEASE · API 42-383-38636 · DISTRICT 6E
University 18-58 #2
Reagan County · Spraberry (Trend Area) field · Producing · Vertical
University 18-58 #2 (API 42-383-38636) is a well in Reagan County operated by Sem Operating Company LLC, completed May 14, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 12, 2014, permitted to 10,407 ft.
It was permitted by Callon Petroleum Operating CO and has since transferred to Sem Operating Company LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Queen, Grayburg, San Andres, Clear Fork.
Its lease has reported 81.1K barrels of oil and 196K mcf of gas since November 2013, last reporting volume in April 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Callon Petroleum Operating Co; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 23, 2026
- Permits on file
- 404
- Phone
- (713) 395-3000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sem Operating Company LLC |
| Production reports | Sem Operating Company LLCthrough Apr 2026 |
| Latest permit | Callon Petroleum Operating CoFeb 12, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,407
- total depth, ft
- 1
- permits on file
- Feb 12, 2014
- last permit issued
- May 14, 2014
- completed
- 81.1K
- cumulative oil, bbl
- 196K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2013 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 14, 2014
- 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.
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 18-58 O-9-18381 | Spraberry (Trend Area) | Sem Operating Company LLC | 2 | 81.1K | 196K | Nov 2013 – Apr 2026 |
Gas, mcf lease total
Last 12 months 14,020 · prior 12 35,664(-61%)
Oil, barrels lease total
Last 12 months 4,805 · prior 12 3,463(+39%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Callon Petroleum Operating CoNov 2013 → May 2019
- 2Sem Operating Company LLCJun 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 778309-99 | Drill | Callon Petroleum Operating Co | Jan 28, 2014 | Feb 12, 2014 | Feb 21, 2014 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 14, 2014 | University 18-58 O-9-18381 | Spraberry (Trend Area) | Sem Operating Company LLC | Producing | 10,407 |
Formation tops
As filed on W-2/G-1. Subsea from 2,642 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 2,960 | -318 |
| Grayburg | 3,403 | -761 |
| San AndresSAN ANDRES - SALTWATER FLOW, POS | 3,490 | -848 |
| Clear ForkCLEARFORK | 4,760 | -2,118 |
| Spraberry | 6,420 | -3,778 |
| Strawn | 10,230 | -7,588 |
| Fusselman | 11,000 | -8,358 |
| Ellenburger | 12,000 | -9,358 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,489 | 10,189 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 518 | 17.5 | 480 S |
| 8.625 | 4,522 | 12.25 | 1,740 S |
| 5.5 | 10,407 | 7.875 | 810 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 24, 2014 | Jun 13, 2014 | 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 42-383-38636 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-38636 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/38338636, documented in the API reference.