TEXAS · WELLS · MIDLAND COUNTY · TRAILAND A UNIT LEASE · API 42-329-40647 · DISTRICT 7B
Trailand a Unit #3905WA
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Trailand A Unit #3905WA (API 42-329-40647) is a horizontal well in Midland County operated by Diamondback E&P LLC, completed August 31, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 17, 2015, permitted to 9,561 ft.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 3.46M barrels of oil and 13.3M mcf of gas since March 2015, last reporting volume in August 2026. The lease carries 13 wells, so these are lease totals, not this well alone.
Operator of record
- 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 Apr 2026 |
| Latest permit | Diamondback E&P LLCNov 17, 2015 |
- 9,561
- total depth, ft
- 1
- permits on file
- Nov 17, 2015
- last permit issued
- Aug 31, 2016
- completed
- 3.46M
- cumulative oil, bbl
- 13.3M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2015 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 31, 2016
- 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; they carry 13 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Trailand a Unit O-10-47022 | Spraberry (Trend Area) | Diamondback E&P LLC | 13 | 3.46M | 13.3M | Mar 2015 – Aug 2026 |
Gas, mcf lease total
Last 12 months 1,158,738 · prior 12 1,373,881(-16%)
Oil, barrels lease total
Last 12 months 38,806 · prior 12 53,347(-27%)
Wells named Trailand a Unit
Diamondback E&P LLC's other wells filed under this lease name in Midland 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.
- 1Diamondback E&P LLCJul 2015 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 812004-99 | Drill | Diamondback E&P LLC | Nov 16, 2015 | Nov 17, 2015 | Nov 27, 2015 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 31, 2016 | Trailand a Unit O-10-47022 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 9,561 |
Formation tops
As filed on W-2/G-1. Subsea from 2,870 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,080 | 1,790 |
| Yates | 2,925 | -55 |
| Seven Rivers | 3,322 | -452 |
| Queen | 3,646 | -776 |
| Grayburg | 4,198 | -1,328 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,578 | -1,708 |
| Glorieta | 6,048 | -3,178 |
| Clear ForkCLEARFORK | 7,218 | -4,348 |
| Spraberry | 8,125 | -5,255 |
| SpraberrySPRABERRY UPPER-DEAN | 9,354 | -6,484 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,604 | 17,045 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 446 | 17.5 | 581 S |
| 9.625 | 8,971 | 12.25 | 1,175 S |
| 5.5 | 17,154 | 8.5 | 2,235 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 | Mar 3, 2017 | Dec 6, 2016 | Yes |
| 00 | Jul 6, 2016 | Jul 5, 2016 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 9, 2019. Cement bond. 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 |
|---|---|---|---|---|
| Cement BondSpans Santa Rosa, Yates, Seven Rivers, Queen, Grayburg, San Andres, Glorieta, Clear Fork, Spraberry | TIFF | 0 to 9,717 | Jan 9, 2019 | 13.7 |
"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 42-329-40647 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-40647 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/32940647, documented in the API reference.