TEXAS · WELLS · MARTIN COUNTY · STRAIN '20A' LEASE · API 42-317-39856 · DISTRICT 7B
Strain 20A #1
Martin County · Spraberry (Trend Area) field · Producing · Vertical
- Fields on the latest permit · any of 3
- Hill Ranch (Miss) · Mon Bak (Strawn) · Spraberry (Trend Area)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Strain 20a #1 (API 42-317-39856) is a well in Martin County operated by Diamondback E&P LLC, completed December 19, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 16, 2014, permitted to 10,875 ft.
It was permitted by Endeavor Energy Resources L.P. 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 57K barrels of oil and 161K mcf of gas since December 2014, last reporting volume in August 2026.
Operator of record
Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- 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 Aug 2026 |
| Latest permit | Endeavor Energy Resources L.P.Sep 16, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,875
- total depth, ft
- 1
- permits on file
- Sep 16, 2014
- last permit issued
- Dec 19, 2014
- completed
- 57K
- cumulative oil, bbl
- 161K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · DEC 2014 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 19, 2014
- 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 |
|---|---|---|---|---|---|---|
| Strain '20A' O-10-46169 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 57K | 161K | Dec 2014 – Aug 2026 |
Gas, mcf lease total
Last 12 months 18,743 · prior 12 12,583(+49%)
Oil, barrels lease total
Last 12 months 1,370 · prior 12 1,430(-4%)
Wells named Strain 20A
Diamondback E&P LLC's other wells filed under this lease name in Martin 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
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Diamondback E&P LLC | Jan 1, 2025 | today |
| Endeavor Energy Resources L.P. | Dec 19, 2014 | Jan 1, 2025 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.Dec 2014 → Dec 2024
- 2Diamondback E&P LLCJan 2025 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 795138-99 | Drill | Endeavor Energy Resources L.P. | Aug 27, 2014 | Sep 16, 2014 | Sep 28, 2014 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 19, 2014 | Strain 20A O-10-46169 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 10,875 |
Formation tops
As filed on W-2/G-1. Subsea from 2,618 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 336 | 2,282 |
| Yates | 2,150 | 468 |
| Queen | 4,100 | -1,482 |
| Grayburg | 4,300 | -1,682 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,750 | -2,132 |
| Cisco | 5,000 | -2,382 |
| Spraberry | 6,875 | -4,257 |
| Dean | 8,225 | -5,607 |
| Wolfcamp | 8,525 | -5,907 |
| Pennsylvanian | 9,650 | -7,032 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,283 | 10,723 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 336 | 17.5 | 350 S |
| 8.625 | 4,736 | 11 | 650 S |
| 5.5 | 10,875 | 7.875 | 1,230 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 | May 29, 2015 | Apr 18, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 26, 2017. Neutron.
Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.
| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NeutronSpans Santa Rosa, Yates, Queen, Grayburg, San Andres, Cisco, Spraberry, Dean, Wolfcamp, Pennsylvanian | TIFF | 38 to 10,821 | Oct 26, 2017 | 5.15 |
"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.
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.
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 42-317-39856 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-39856 → 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/31739856, documented in the API reference.