TEXAS · WELLS · UPTON COUNTY · API 42-461-34100 · DISTRICT 6E
Lunden #1
Upton County · Spraberry (Trend Area) field · Vertical
Lunden #1 (API 42-461-34100) is a plugged well in Upton County, plugged April 23, 2025, last operated by Cog Operating LLC.
The RRC has issued 2 drilling permits between 2000 and 2013, permitted to 10,100 ft.
It was permitted by Summit Petroleum LLC and has since transferred to Cog Operating LLC on the wellbore schedule.
Completion filings report 8 formation tops, including San Andres, Spraberry, Leonard, Dean.
Its 3 leases have reported 230K barrels of oil and 1.07M mcf of gas since November 2000, last reporting volume in April 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Summit Petroleum LLC; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 4,568
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | Summit Petroleum LLCJul 18, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,100
- total depth, ft
- 2
- permits on file
- Jul 18, 2013
- last permit issued
- May 22, 2013
- completed
- 230K
- cumulative oil, bbl
- 1.07M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2000 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 22, 2013
- Shut in
- —
- Plugged
- Apr 23, 2025
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 3 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lunden O-9-18298 | Spraberry (Trend Area) | COG Operating LLC | 4 | 176K | 592K | May 2013 – Apr 2026 |
| Lunden G-9-189605 | Amacker-Tippett, SW (Wolfcamp) | COG Operating LLC | 1 | 28 | 74.9K | Jun 2002 – Apr 2013 |
| Amacker "65" NE O-9-15073 | Amacker-Tippett, SW (Wolfcamp) | EOG Resources, Inc. | 1 | 53.8K | 406K | Nov 2000 – Jun 2002 |
Oil, barrels lease total
Last 12 months 1,671 · prior 12 2,918(-43%)
Gas, mcf lease total
Last 12 months 3,591 · prior 12 7,278(-51%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Nov 2000 → Dec 2012
- 2Summit Petroleum LLCFeb 2013 → Feb 2017
- 3True Oil Company LLCSep 2014 → Mar 2016
- 4COG Operating LLCMar 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 766616-99 | Recompletion | Summit Petroleum LLC | Jul 17, 2013 | Jul 18, 2013 | Apr 12, 2013 | 9,600 |
| 500728-99 | Drill | EOG Resources, Inc. | Oct 12, 2000 | Oct 18, 2000 | Oct 27, 2000 | 10,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 22, 2013 | Lunden O-9-18298 | Spraberry (Trend Area) | COG Operating LLC | Plugged | — |
| Apr 30, 2004 | Lunden G-9-189605 | Amacker-Tippett SW (Wolfcamp) | COG Operating LLC | Plugged | — |
| Nov 26, 2000 | Amacker 65 NE O-9-15073 | Amacker-Tippett SW (Wolfcamp) | EOG Resources Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,771 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,900 | 9,040 | Perforated |
| 9,302 | 9,440 | Perforated |
| 9,445 | 9,485 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 551 | 12.25 | 318 S |
| 7 | 8,725 | 8.75 | 635 S |
| 4.5 | 9,600 | 6.125 | 75 S |
| 4.5 | 9,600 | 7.875 | 75 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 | Feb 26, 2014 | Jul 26, 2013 | Yes |
| 00 | May 3, 2005 | Jun 14, 2004 | — |
| 00 | Sep 4, 2002 | Jul 9, 2002 | — |
| 00 | Jul 31, 2002 | — | Yes |
| 00 | Mar 24, 2001 | Dec 12, 2000 | Yes |
| 00 | Dec 20, 2000 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Jun 15, 2016. Density, 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 |
|---|---|---|---|---|
| NEUTRON POROSITYSpans San Andres, Spraberry, Leonard, Dean, Wolfcamp, Amacker, Amacker Wolfcamp | TIFF | 0 to 9,146 | Jun 15, 2016run Apr 16, 2013 | 4.40 |
| Neutron/Density PorosityCOMPENSATED NEUTRON COMP. Z-DENSILOG GAMAA RAY LOGSpans San Andres, Spraberry, Leonard, Dean, Wolfcamp, Amacker Wolfcamp, Amacker, M. Wolfcamp | TIFF | 0 to 9,598 | Mar 6, 2008run Nov 13, 2000 | — |
"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 42-461-34100 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-34100 → 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/46134100, documented in the API reference.