WELL · 42-371-39835 · DISTRICT 8
Trees Estate -77- #H001
Pecos County · Wolfbone (Trend Area) field · Producing · Horizontal
Trees Estate -77- #H001 (API 42-371-39835) is a horizontal well in Pecos County operated by Swordfish Energy Operating LLC, completed April 7, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 18, 2018, permitted to 9,450 ft.
It was permitted by Rosehill Operating Company, LLC and has since transferred to Swordfish Energy Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Delaware, Canyon, Clear Fork, Montoya.
Its lease has reported 564K barrels of oil and 659K mcf of gas since March 2018, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Swordfish Energy Operating LLC
Permitted by Rosehill Operating Company, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Sep 4, 2025 · 2 permits on file · (281) 371-9035
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Swordfish Energy Operating LLC |
| Production reports | Swordfish Energy Operating, LLCthrough Mar 2026 |
| Latest permit | Rosehill Operating Company, LLCSep 18, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,450
- total depth, ft
- 2
- permits on file
- Sep 18, 2018
- last permit issued
- Apr 7, 2019
- completed
- 564K
- cumulative oil, bbl
- 659K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 7, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.195316, -102.960773
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Pecos County.
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Trees Estate -77- O-10-51721 | Wolfbone (Trend Area) | Swordfish Energy Operating, LLC | 5 | 564K | 659K | Mar 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 49,449 · prior 12 40,047(+23%)
Gas, mcf lease total
Last 12 months 130,858 · prior 12 35,993(+264%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Rosehill Operating Company, LLCMar 2018 → Jul 2021
- 2LRR Pecos Valley, LLCOct 2021 → Nov 2025
- 3Swordfish Energy Operating, LLCDec 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 844771-97 | Drill | Rosehill Operating Company, LLC | Jun 11, 2019 | Sep 18, 2018 | Dec 15, 2018 | 8,924 |
| 844771-99 | Drill | Rosehill Operating Company, LLC | Sep 18, 2018 | Sep 18, 2018 | Dec 15, 2018 | 9,450 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-51721 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,586 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 4,720 | -2,134 |
| Canyon | — | — |
| Clear ForkCLEARFORK | — | — |
| Montoya | — | — |
| Permian (undifferentiated)PERMIAN GENERAL | — | — |
| Queen | — | — |
| San AndresSAN ANDRES - USABLE QUALITY WATE | — | — |
| Sullivan | — | — |
| Waddell | — | — |
| Wichita-AlbanyWICHITA ALBANY | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,249 | 14,010 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,484 | 17.5 | 2,300 S |
| 9.625 | 4,803 | 12.25 | 500 S |
| 7.625 | 8,296 | 8.75 | 1,350 S |
| 5 | 14,195 | 8.75 | 1,350 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 | Nov 4, 2019 | Aug 19, 2019 | 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 42-371-39835 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-39835 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Trees Estate 7742-371-39836
0.0 KM · Rosehill Operating Company, LLC · Section with this well →
| Rustler | 2,237 | 349 |
| Yates | 2,774 | -188 |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| O'Brien | — | |
| Tubb | — | |
| Queen | — |
10 TOPS · FIRST 8
Sisters 1742-371-39772
0.1 KM · Rosehill Operating Company, LLC · Section with this well →
| Rustler | 2,138 | 448 |
| Delaware | 4,648 | -2,062 |
| Bone Spring | 7,918 | -5,332 |
| Wolfcamp | 8,786 | -6,200 |
| O'Brien | — | |
| Yates | — | |
| Toborg | — | |
| Soma | — |
10 TOPS · FIRST 8
Reed, Elizabeth42-371-33395
0.6 KM · Rosehill Operating Company, LLC · Section with this well →
| Bell Canyon | 4,642 | -2,047 |
| Brushy Canyon | 6,323 | -3,728 |
| Bone Spring | 6,889 | -4,294 |
| Wolfcamp | 8,886 | -6,291 |
| Strawn | 11,150 | -8,555 |
| Barnett | 11,714 | -9,119 |
Trees Estate -77-42-371-32667
0.8 KM · Rosehill Operating Company, LLC · Section with this well →
| Rustler | 1,904 | 692 |
| Delaware | 4,485 | -1,889 |
| Cherry Canyon | 5,320 | -2,724 |
| Bone Spring | 7,005 | -4,409 |
| Wolfcamp | 8,958 | -6,362 |
State Big Tex South 781615-14342-371-39851
0.8 KM · Jagged Peak Energy LLC · Section with this well →
| Toborg | 431 | 2,144 |
| Soma | 778 | 1,797 |
| Rustler | 1,278 | 1,297 |
| Seven Rivers | 1,578 | 997 |
| Yates | 1,778 | 797 |
| Grayburg | 1,878 | 697 |
| Queen | 2,228 | 347 |
| O'Brien | 2,478 | 97 |
10 TOPS · FIRST 8
Reed42-371-10818
1.0 KM · Rosehill Operating Company, LLC · Section with this well →
| Rustler | 1,970 | 648 |
| Bell Canyon | 4,440 | -1,822 |
| Bone Spring | 6,995 | -4,377 |
| Wolfcamp | 8,898 | -6,280 |
| Barnett | 11,830 | -9,212 |
Reed42-371-38413
1.2 KM · Rosehill Operating Company, LLC · Section with this well →
| Lamar | 4,461 | -1,861 |
| Bone Spring | 7,055 | -4,455 |
| Wolfcamp | 10,200 | -7,600 |
| Barnett | 11,584 | -8,984 |
Reed42-371-38263
1.3 KM · Rosehill Operating Company, LLC · Section with this well →
| Lamar | 4,461 | -1,862 |
| Bone Spring | 7,055 | -4,456 |
| Wolfcamp | 10,200 | -7,601 |
| Barnett | 11,584 | -8,985 |
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/37139835, documented in the API reference.