TEXAS · WELLS · REAGAN COUNTY · SCHWARTZ 91 POOLED UNIT LEASE · API 42-383-39127 · DISTRICT 6E
Schwartz 91 Pooled Unit #4LH
Reagan County · Lin (Wolfcamp) field · Horizontal
Schwartz 91 Pooled Unit #4LH (API 42-383-39127) is a plugged horizontal well in Reagan County, plugged November 29, 2016, last operated by Sem Operating Company LLC.
The RRC has issued one drilling permit, issued September 17, 2014, permitted to 8,000 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 Clear Fork, Ellenburger, Fusselman, Grayburg.
Its lease has reported 483K barrels of oil and 1.57M mcf of gas since July 2013, last reporting volume in August 2026. The lease carries 5 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 Aug 2026 |
| Latest permit | Callon Petroleum Operating CoSep 17, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Sep 17, 2014
- last permit issued
- Oct 7, 2014
- completed
- 483K
- cumulative oil, bbl
- 1.57M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2013 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 7, 2014
- Shut in
- —
- Plugged
- Nov 29, 2016
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Schwartz 91 Pooled Unit O-9-18294 | Lin (Wolfcamp) | Sem Operating Company LLC | 5 | 483K | 1.57M | Jul 2013 – Aug 2026 |
Gas, mcf lease total
Last 12 months 48,260 · prior 12 73,494(-34%)
Oil, barrels lease total
Last 12 months 8,335 · prior 12 12,790(-35%)
Wells named Schwartz 91 Pooled Unit
Sem Operating Company LLC's other wells filed under this lease name in Reagan 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.
- 1Callon Petroleum Operating CoJul 2013 → May 2019
- 2Sem Operating Company LLCJun 2019 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 795035-99 | Drill | Callon Petroleum Operating Co | Aug 26, 2014 | Sep 17, 2014 | Oct 4, 2014 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 7, 2014 | Schwartz 91 Pooled Unit O-9-18294 | Lin (Wolfcamp) | Sem Operating Company LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Clear ForkCLEARFORK | — |
| Ellenburger | — |
| Fusselman | — |
| Grayburg | — |
| Queen | — |
| San AndresSAN ANDRES - SALTWATER FLOW, POS | — |
| Spraberry | — |
| Strawn | — |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 830 | 17.5 | 710 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 | Jun 26, 2015 | Jun 2, 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 42-383-39127 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-39127 → 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/38339127, documented in the API reference.