WELL · 42-461-39738 · DISTRICT 7
ER Unit 58-3 #5H
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
ER Unit 58-3 #5H (API 42-461-39738) is a horizontal well in Upton County operated by Saxum Opco LLC, completed September 26, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 16, 2014, permitted to 10,000 ft.
It was permitted by Diamondback E&P LLC and has since transferred to Saxum Opco LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 678K barrels of oil and 2.94M mcf of gas since January 2014, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Diamondback E&P LLC; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jul 4, 2026 · 8 permits on file · (432) 901-1082
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Saxum Opco LLC |
| Production reports | Saxum Opco, LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCSep 16, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 1
- permits on file
- Sep 16, 2014
- last permit issued
- Sep 26, 2015
- completed
- 678K
- cumulative oil, bbl
- 2.94M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 26, 2015
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| ER Unit 58-3 O-9-18624 | Spraberry (Trend Area) | Saxum Opco, LLC | 4 | 678K | 2.94M | Jan 2014 – Jul 2026 |
Gas, mcf lease total
Last 12 months 257,699 · prior 12 259,489(-1%)
Oil, barrels lease total
Last 12 months 18,646 · prior 12 22,622(-18%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCFeb 2014 → May 2021
- 2Zarvona Energy LLCJun 2021 → Sep 2025
- 3Saxum Opco, LLCOct 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 793196-99 | Drill | Diamondback E&P LLC | Aug 1, 2014 | Sep 16, 2014 | Oct 16, 2014 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-18624 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,624 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,150 | 474 |
| Yates | 2,179 | 445 |
| Grayburg | 3,510 | -886 |
| Grayburg | 3,551 | -927 |
| San AndresSAN ANDRES - SALTWATER FLOW | 3,840 | -1,216 |
| San AndresSAN ANDRES - SALTWATER FLOW | 3,879 | -1,255 |
| Spraberry | 6,615 | -3,991 |
| Spraberry | 7,100 | -4,476 |
| Wolfcamp | 7,970 | -5,346 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,614 | 13,292 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 531 | 17.5 | 705 S |
| 9.625 | 7,432 | 12.25 | 1,688 S |
| 5.5 | 13,437 | 8.5 | 1,940 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 | Feb 4, 2016 | Dec 18, 2015 | Yes |
| 00 | Jul 2, 2015 | May 13, 2015 | 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 42-461-39738 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39738 → 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/46139738, documented in the API reference.