TEXAS · WELLS · UPTON COUNTY · LOTHLORIEN 20 LEASE · API 42-461-40039 · DISTRICT 6E
Lothlorien 20 #1
Upton County · Spraberry (Trend Area) R 40 Exc field · Producing · Vertical
- Fields on the latest permit · any of 6
- Davis (Pennsylvanian) · Dewey Lake (Atoka) · Petty 48 (Upper Strawn) · Rose Petal (Lower Miss.) · Spraberry (Trend Area) R 40 Exc · Tokeen (Mississippian)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Lothlorien 20 #1 (API 42-461-40039) is a well in Upton County operated by Oxyrock Operating LLC, completed July 14, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued February 20, 2015, permitted to 11,593 ft.
It was permitted by Crownquest Operating, LLC and has since transferred to Oxyrock Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 109K barrels of oil and 479K mcf of gas since July 2015, last reporting volume in August 2026.
Operator of record
Permitted by Crownquest Operating, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 22, 2026
- Permits on file
- 393
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Oxyrock Operating LLC |
| Production reports | Oxyrock Operating, LLCthrough Aug 2026 |
| Latest permit | Crownquest Operating, LLCFeb 20, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,593
- total depth, ft
- 2
- permits on file
- Feb 20, 2015
- last permit issued
- Jul 14, 2015
- completed
- 109K
- cumulative oil, bbl
- 479K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2015 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 14, 2015
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lothlorien 20 O-9-19129 | Spraberry (Trend Area) R 40 Exc | Oxyrock Operating, LLC | 1 | 109K | 479K | Jul 2015 – Aug 2026 |
Gas, mcf lease total
Last 12 months 28,621 · prior 12 37,553(-24%)
Oil, barrels lease total
Last 12 months 2,810 · prior 12 2,891(-3%)
Wells named Lothlorien 20
Oxyrock Operating LLC's other wells filed under this lease name in Upton 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.
- 1Crownquest Operating, LLCJul 2015 → Jul 2024
- 2Oxyrock Operating, LLCAug 2024 → Jul 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 803803-98 | Drill | Crownquest Operating, LLC | Apr 14, 2015 | Feb 20, 2015 | Jun 10, 2015 | 12,000 |
| 803803-99 | Drill | Crownquest Operating, LLC | Feb 15, 2015 | Feb 20, 2015 | Jun 9, 2015 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 14, 2015 | Lothlorien 20 O-9-19129 | Spraberry (Trend Area) R 40 Exc | Oxyrock Operating LLC | Producing | 11,593 |
Formation tops
As filed on W-2/G-1. Subsea from 2,706 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,195 | 511 |
| Grayburg | 3,950 | -1,244 |
| San AndresSAN ANDRES - SALTWATER FLOW | 4,274 | -1,568 |
| Spraberry | 6,967 | -4,261 |
| Wolfcamp | 8,568 | -5,862 |
| Strawn | 10,533 | -7,827 |
| Pennsylvanian | 10,942 | -8,236 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,593 | 10,491 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 474 | 17.5 | 600 S |
| 8.625 | 5,235 | 11 | 1,475 S |
| 5.5 | 11,593 | 7.875 | 1,400 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 | Dec 17, 2015 | Nov 23, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, 1 of it with a digital LAS file, the latest received May 31, 2018. Neutron. 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 |
|---|---|---|---|---|
| NeutronSpans San Andres, Spraberry, Wolfcamp, Strawn, Pennsylvanian | LAS + TIFF | 5,000 to 11,500 | May 31, 2018 | 1.21 + 11.1 |
"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 42-461-40039 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-40039 → 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/46140039, documented in the API reference.