WELL · 42-317-39391 · DISTRICT 8
Lucas #4
Martin County · Spraberry (Trend Area) field · Producing · Vertical
Lucas #4 (API 42-317-39391) is a well in Martin County operated by Diamondback E&P LLC, completed July 19, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 13, 2014, permitted to 12,000 ft.
It was permitted by R K Petroleum Corp. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, Grayburg.
Its lease has reported 370K barrels of oil and 473K mcf of gas since July 2011, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by R K Petroleum Corp.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | R K Petroleum Corp.May 13, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- May 13, 2014
- last permit issued
- Jul 19, 2014
- completed
- 370K
- cumulative oil, bbl
- 473K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 19, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Lucas O-10-42054 | Spraberry (Trend Area) | Diamondback E&P LLC | 4 | 370K | 473K | Jul 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 21,244 · prior 12 21,691(-2%)
Gas, mcf lease total
Last 12 months 14,995 · prior 12 17,050(-12%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1R K Petroleum Corp.Jul 2011 → Sep 2016
- 2QEP Energy CompanyOct 2016 → Sep 2021
- 3Diamondback E&P LLCOct 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 782259-99 | Drill | R K Petroleum Corp. | Mar 15, 2014 | May 13, 2014 | May 10, 2014 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-42054 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,836 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,200 | 1,636 |
| Yates | 2,640 | 196 |
| Queen | 3,950 | -1,114 |
| Grayburg | 4,029 | -1,193 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,144 | -1,308 |
| Cisco | 6,120 | -3,284 |
| Spraberry | 7,618 | -4,782 |
| Dean | 8,972 | -6,136 |
| Wolfcamp | 9,186 | -6,350 |
| Pennsylvanian | 10,082 | -7,246 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,048 | 7,230 | Perforated |
| 7,500 | 7,505 | Perforated |
| 7,974 | 8,215 | Perforated |
| 8,712 | 8,970 | Perforated |
| 9,140 | 9,600 | Perforated |
| 9,352 | 9,605 | Perforated |
| 9,668 | 9,831 | Perforated |
| 10,272 | 10,449 | Perforated |
| 10,732 | 10,899 | Perforated |
| 10,946 | 11,177 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 385 | 17.5 | 445 S |
| 8.625 | 5,015 | 11 | 615 S |
| 5.5 | 11,292 | 7.875 | 1,210 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 11, 2015 | Nov 3, 2014 | 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 42-317-39391 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-39391 → 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/31739391, documented in the API reference.