42-317-42471

SHUT IN Horizontal

DARK STAR UNIT 2

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

Permits

1

Max Depth

10,000 ft

First Permit

2019-08-22

Latest Activity

2019-08-22

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-04-17

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-12

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 2,582 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 749 ft+1,833 ft
SANTA ROSA 810 ft+1,772 ft
YATES 2,037 ft+545 ft
YATES 2,057 ft+525 ft
QUEEN 3,137 ft-555 ft
QUEEN 3,172 ft-590 ft
GRAYBURG 3,396 ft-814 ft
GRAYBURG 3,411 ft-829 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,458 ft-876 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,467 ft-885 ft
SPRABERRY 6,575 ft-3,993 ft
SPRABERRY 6,587 ft-4,005 ft
DEAN 8,137 ft-5,555 ft
WOLFCAMP 8,320 ft-5,738 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
42-317-42470 DARK STAR UNIT 2 · XTO ENERGY INC.
0.0 mi
Santa Rosa 757'Santa Rosa 810'Yates 2,037'Yates 2,065'Queen 3,137'Queen 3,172'Grayburg 3,396'Grayburg 3,412'San Andres 3,458'San Andres 3,469'Spraberry 6,575'Spraberry 6,588' +6 more
42-317-42472 DARK STAR UNIT 2 · XTO ENERGY INC.
0.0 mi
Santa Rosa 755'Santa Rosa 810'Yates 2,037'Yates 2,057'Queen 3,137'Queen 3,174'Grayburg 3,396'Grayburg 3,407'San Andres 3,458'San Andres 3,465'Spraberry 6,575'Spraberry 6,585' +6 more
42-317-42475 DARK STAR UNIT 2 · XTO ENERGY INC.
0.0 mi
Santa Rosa 755'Santa Rosa 815'Yates 2,042'Yates 2,064'Queen 3,142'Queen 3,183'Grayburg 3,401'Grayburg 3,420'San Andres 3,463'San Andres 3,477'Spraberry 6,580'Spraberry 6,602' +7 more
42-317-42474 DARK STAR UNIT 2 · XTO ENERGY INC.
0.1 mi
Santa Rosa 730'Santa Rosa 820'Yates 2,047'Yates 2,055'Queen 3,147'Queen 3,180'Grayburg 3,406'Grayburg 3,418'San Andres 3,468'San Andres 3,475'Spraberry 6,585'Spraberry 6,604' +6 more
42-317-42473 DARK STAR UNIT 2 · XTO ENERGY INC.
0.2 mi
Santa Rosa 764'Santa Rosa 820'Yates 2,047'Yates 2,064'Queen 3,147'Queen 3,172'Grayburg 3,406'Grayburg 3,424'San Andres 3,468'San Andres 3,471'Spraberry 6,585'Spraberry 6,603' +6 more
42-317-42478 DARK STAR UNIT 2 · XTO ENERGY INC.
0.2 mi
Santa Rosa 772'Santa Rosa 827'Yates 2,054'Yates 2,078'Queen 3,154'Queen 3,177'Grayburg 3,413'Grayburg 3,443'San Andres 3,475'San Andres 3,494'Spraberry 6,592'Spraberry 6,603' +6 more
42-317-42477 DARK STAR UNIT 2 · XTO ENERGY INC.
0.2 mi
Santa Rosa 789'Santa Rosa 827'Yates 2,054'Yates 2,078'Queen 3,154'Queen 3,172'Grayburg 3,413'Grayburg 3,427'San Andres 3,475'San Andres 3,488'Spraberry 6,592'Spraberry 6,602' +6 more
42-317-42476 DARK STAR UNIT 2 · XTO ENERGY INC.
0.2 mi
Santa Rosa 758'Santa Rosa 834'Yates 2,061'Yates 2,081'Queen 3,161'Queen 3,189'Grayburg 3,420'Grayburg 3,446'San Andres 3,482'San Andres 3,497'Spraberry 6,599'Spraberry 6,600' +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
8,655–19,032 ftPerforated

Casing (3)

SizeSet DepthCement
11.75"1,078 ft580 sx
8.625"7,232 ft1,555 sx
5.5"19,146 ft2,195 sx

Permit History (1)

Applications (1)

#855593 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 2021-06-04 log on file
W-2/G-1 2020-07-23 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 32.273100
Lon -101.760633

Well Details

Well Number
2128SH
Max Depth
10,000 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2021-04-17

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