42-317-42469

SHUT IN Horizontal

DARK STAR UNIT 1

MARTIN County · District 8 · XTO ENERGY INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

10,000 ft

First Permit

2019-08-21

Latest Activity

2019-08-21

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-05-18

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-01

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (18) Elevation 2,604 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 865 ft+1,739 ft
SANTA ROSA 925 ft+1,679 ft
YATES 2,092 ft+512 ft
YATES 2,126 ft+478 ft
QUEEN 3,192 ft-588 ft
QUEEN 3,204 ft-600 ft
GRAYBURG 3,451 ft-847 ft
GRAYBURG 3,475 ft-871 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,513 ft-909 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,524 ft-920 ft
SPRABERRY 6,630 ft-4,026 ft
SPRABERRY 6,642 ft-4,038 ft
DEAN 8,192 ft-5,588 ft
WOLFCAMP 8,375 ft-5,771 ft
CISCO
DEAN
PENNSYLVANIAN
WOLFCAMP

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-317-42468 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 928'Yates 2,092'Yates 2,119'Queen 3,192'Queen 3,223'Grayburg 3,451'Grayburg 3,463'San Andres 3,513'San Andres 3,515'Spraberry 6,630'Spraberry 6,646'Dean 8,192' +6 more
42-317-42467 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 865'Santa Rosa 930'Yates 2,092'Yates 2,118'Queen 3,192'Queen 3,223'Grayburg 3,451'Grayburg 3,469'San Andres 3,513'San Andres 3,530'Spraberry 6,630'Spraberry 6,647' +6 more
42-317-42465 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 881'Santa Rosa 930'Yates 2,108'Yates 2,117'Queen 3,208'Queen 3,242'Grayburg 3,467'Grayburg 3,469'San Andres 3,522'San Andres 3,529'Spraberry 6,646'Spraberry 6,647' +6 more
42-317-42466 DARK STAR UNIT 1 · XTO ENERGY INC.
0.1 mi
Santa Rosa 883'Santa Rosa 917'Yates 2,109'Yates 2,110'Queen 3,210'Queen 3,243'Grayburg 3,469'Grayburg 3,474'San Andres 3,523'San Andres 3,531'Spraberry 6,633'Spraberry 6,648' +6 more
42-317-42495 DARK STAR UNIT 1 & 2 ALLOCATION · XTO ENERGY INC.
0.1 mi
Santa Rosa 853'Santa Rosa 862'Yates 2,089'Yates 2,112'Queen 3,189'Queen 3,221'Grayburg 3,448'Grayburg 3,460'San Andres 3,510'San Andres 3,520'Spraberry 6,626'Spraberry 6,627' +6 more
42-317-42463 DARK STAR UNIT 1 · XTO ENERGY INC.
0.1 mi
Santa Rosa 883'Santa Rosa 924'Yates 2,110'Yates 2,117'Queen 3,210'Queen 3,233'Grayburg 3,469'Grayburg 3,474'San Andres 3,524'San Andres 3,531'Spraberry 6,648'Spraberry 6,654' +6 more
42-317-42462 DARK STAR UNIT 1 · XTO ENERGY INC.
0.1 mi
Santa Rosa 933'Yates 2,117'Queen 3,217'Queen 3,233'Grayburg 3,475'Grayburg 3,476'San Andres 3,530'San Andres 3,538'Spraberry 6,646'Spraberry 6,655'Dean 8,217'Dean 8,233' +6 more
42-317-42494 DARK STAR UNIT 1 & 2 ALLOCATION · XTO ENERGY INC.
0.1 mi
Santa Rosa 856'Santa Rosa 862'Yates 2,089'Yates 2,093'Queen 3,189'Queen 3,226'Grayburg 3,448'Grayburg 3,463'San Andres 3,510'San Andres 3,522'Spraberry 6,627'Spraberry 6,635' +6 more

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
8,390–18,723 ftPerforated

Casing (3)

SizeSet DepthCement
11.75"1,135 ft610 sx
8.625"5,587 ft1,209 sx
5.5"18,891 ft2,162 sx

Permit History (1)

Applications (1)

#855550 A XTO ENERGY INC.
received 2019-07-25

Records & Logs

2 completion filings on record · 2 with log images at RRC.

W-2/G-1 2021-06-24 log on file
W-2/G-1 2020-06-10 log on file
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

Lat 32.271234
Lon -101.770566

Well Details

Well Number
2144LH
Max Depth
10,000 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2021-05-18

Operator

Location
SPRING
P-5 Status
X (filed 2026-04-08)
Cum Oil (all leases)
772,419,164 bbl
Cum Gas (all leases)
11,039,899,986 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
16,138