TEXAS · WELLS · MARTIN COUNTY · RK-UNION LEASE · API 42-317-32120 · DISTRICT 7B
RK-Union #2
Martin County · Spraberry (Trend Area) field · Vertical
- Fields on the latest permit · any of 3
- Anchor Ranch (Devonian) · Breedlove,south(strawn) · Spraberry (Trend Area)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
RK-Union #2 (API 42-317-32120) is a plugged well in Martin County, plugged May 20, 2022, last operated by Diamondback E&P LLC.
The RRC has issued one drilling permit, issued November 20, 1979, permitted to 9,387 ft.
It was permitted by R K Petroleum Corporation and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Spraberry, Pennsylvanian, Strawn, L. Miss.
Its lease has reported 50.3K barrels of oil and 63K mcf of gas since January 1993, with no volume in the three years through April 2026.
Operator of record
Permitted by R K Petroleum Corporation; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,254
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Jul 2021 |
| Latest permit | R K Petroleum CorporationNov 20, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,387
- total depth, ft
- 1
- permits on file
- Nov 20, 1979
- last permit issued
- Jul 13, 2021
- completed
- 50.3K
- cumulative oil, bbl
- 63K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 13, 2021
- Shut in
- —
- Plugged
- May 20, 2022
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| RK-Union O-10-26328 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 50.3K | 63K | Jan 1993 – Jul 2021 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1R K Petroleum Corp.Jan 1993 → Feb 1996
- 2MWJ Producing CompanyMay 1996 → Sep 1997
- 3Arkland Producing Co., Inc.Oct 1997 → Aug 2017
- 4Energen Resources CorporationOct 2017 → Jan 2019
- 5Diamondback E&P LLCFeb 2019 → Jul 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 64440-99 | Drill | R K Petroleum Corporation | Nov 20, 1979 | Nov 20, 1979 | Nov 23, 1979 | 9,387 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 13, 2021 | RK-Union O-10-26328 | Spraberry (Trend Area) | Diamondback E&P LLC | Plugged | — |
| Nov 30, 1980 | RK-Union O-10-26328 | Spraberry (Trend Area) | Diamondback E&P LLC | Plugged | — |
| Feb 29, 1980 | R K Union O-10-25802 | Breedlove South(strawn) | R K Petroleum Corp. | Plugged | — |
| Feb 1, 1980 | R K Union O-10-25802 | Breedlove South(strawn) | R K Petroleum Corp. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,880 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Spraberry | 7,907 | -5,027 |
| PennsylvanianPENN | 9,253 | -6,373 |
| Strawn | 10,862 | -7,982 |
| L. Miss | 11,511 | -8,631 |
| Woodford | 11,829 | -8,949 |
| Wooford | 11,829 | -8,949 |
| Devonian | 11,996 | -9,116 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,261 | 9,387 | Perforated |
| 9,261 | 10,872 | Perforated |
| 10,868 | 10,872 | Perforated |
| — | 9,387 | Perforated |
| — | 10,872 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 370 | 17.5 | — |
| 9.625 | 4,475 | 11 | — |
| 8.625 | 4,475 | 11 | 500 S |
| 2.375 | 10,815 | — | — |
| 7 | 12,034 | 8.75 | — |
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 | Aug 11, 2021 | Jul 14, 2021 | — |
| 00 | Feb 2, 1987 | Jan 16, 1987 | — |
| 00 | Jan 12, 1984 | Jan 14, 1981 | Yes |
| 00 | Jan 12, 1984 | Mar 6, 1980 | — |
| 00 | Jan 12, 1984 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 4, 2012. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Spraberry, Pennsylvanian, Strawn, L. Miss, Wooford, Woodford, Devonian | TIFF | 6,800 to 12,018 | Jan 4, 2012run Dec 30, 1979 | 1.10 |
"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 42-317-32120 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-32120 → 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/31732120, documented in the API reference.