TEXAS · WELLS · MIDLAND COUNTY · HEADLEE 3526 UNIT LEASE · API 42-329-40977 · DISTRICT 7B
Headlee 3526 Unit #2LS
Midland County · Spraberry (Trend Area) field · Producing · Horizontal
Headlee 3526 Unit #2LS (API 42-329-40977) is a horizontal well in Midland County operated by Diamondback E&P LLC, completed October 14, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 19, 2016, permitted to 9,410 ft.
Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 1.11M barrels of oil and 1.43M mcf of gas since October 2016, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- 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 LLCMay 19, 2016 |
- 9,410
- total depth, ft
- 1
- permits on file
- May 19, 2016
- last permit issued
- Oct 14, 2016
- completed
- 1.11M
- cumulative oil, bbl
- 1.43M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 14, 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.
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Headlee 3526 Unit O-10-48289 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 1.11M | 1.43M | Oct 2016 – Jul 2026 |
Oil, barrels lease total
Last 12 months 46,811 · prior 12 51,919(-10%)
Gas, mcf lease total
Last 12 months 81,658 · prior 12 87,514(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCOct 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 815740-99 | Drill | Diamondback E&P LLC | May 18, 2016 | May 19, 2016 | Jun 15, 2016 | 10,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 14, 2016 | Headlee 3526 Unit O-10-48289 | Spraberry (Trend Area) | Diamondback E&P LLC | Producing | 9,410 |
Formation tops
As filed on W-2/G-1. Subsea from 2,957 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,129 | 1,828 |
| Yates | 3,075 | -118 |
| Seven Rivers | 3,423 | -466 |
| Queen | 3,798 | -841 |
| Grayburg | 4,372 | -1,415 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,776 | -1,819 |
| Glorieta | 6,302 | -3,345 |
| Clear ForkCLEARFORK | 7,462 | -4,505 |
| Spraberry | 8,346 | -5,389 |
| SpraberrySPRABERRY UPPER-DEAN | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,020 | 20,515 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,608 | 17.5 | 1,976 S |
| 9.625 | 7,321 | 12.25 | 605 S |
| 5.5 | 20,611 | 8.5 | 2,990 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 | May 2, 2017 | Feb 8, 2017 | 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 42-329-40977 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-40977 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/32940977, documented in the API reference.