42-317-42457

PRODUCING Horizontal

DARK STAR UNIT 1

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

Permits

1

Max Depth

10,000 ft

First Permit

2019-08-20

Latest Activity

2019-08-20

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-05-04

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 (16) Elevation 2,615 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 906 ft+1,709 ft
SANTA ROSA 934 ft+1,681 ft
YATES 2,127 ft+488 ft
YATES 2,133 ft+482 ft
QUEEN 3,233 ft-618 ft
QUEEN 3,265 ft-650 ft
GRAYBURG 3,492 ft-877 ft
GRAYBURG 3,512 ft-897 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,554 ft-939 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)3,568 ft-953 ft
SPRABERRY 6,671 ft-4,056 ft
DEAN 8,233 ft-5,618 ft
WOLFCAMP 8,416 ft-5,801 ft
WOLFCAMP 8,422 ft-5,807 ft
CISCO
PENNSYLVANIAN

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
42-317-42454 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 911'Santa Rosa 977'Yates 2,138'Yates 2,158'Queen 3,238'Queen 3,262'Grayburg 3,497'Grayburg 3,513'San Andres 3,559'San Andres 3,580'Spraberry 6,676'Spraberry 6,679' +6 more
42-317-42455 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 911'Santa Rosa 953'Yates 2,138'Yates 2,166'Queen 3,238'Queen 3,257'Grayburg 3,497'Grayburg 3,515'San Andres 3,559'San Andres 3,576'Spraberry 6,676'Spraberry 6,681' +6 more
42-317-42456 DARK STAR UNIT 1 · XTO ENERGY INC.
0.0 mi
Santa Rosa 911'Santa Rosa 961'Yates 2,138'Yates 2,161'Queen 3,238'Queen 3,279'Grayburg 3,497'Grayburg 3,526'San Andres 3,559'San Andres 3,585'Spraberry 5,531'Spraberry 6,676' +6 more
42-317-41003 STRAIN 20 UNIT 2 · XTO ENERGY INC.
0.1 mi
Santa Rosa 969'Yates 2,163'Queen 3,266'Grayburg 3,715'San Andres 3,791'Spraberry 6,954'Dean 8,274'Wolfcamp 8,440'Pennsylvanian Cisco
42-317-42458 DARK STAR UNIT 1 · XTO ENERGY INC.
0.1 mi
Santa Rosa 903'Santa Rosa 921'Yates 2,130'Queen 3,230'Queen 3,243'Grayburg 3,486'Grayburg 3,489'San Andres 3,542'San Andres 3,551'Spraberry 6,658'Spraberry 6,668'Dean 8,230' +5 more
42-317-41005 STRAIN 20 UNIT 2 · XTO ENERGY INC.
0.1 mi
Santa Rosa 957'Yates 2,172'Queen 3,267'Grayburg 3,713'San Andres 3,793'Spraberry 6,953'Cisco Wolfcamp Pennsylvanian Dean
42-317-42459 DARK STAR UNIT 1 · XTO ENERGY INC.
0.1 mi
Santa Rosa 903'Santa Rosa 925'Yates 2,130'Yates 2,134'Queen 3,230'Queen 3,238'Grayburg 3,487'Grayburg 3,489'San Andres 3,551'San Andres 3,556'Spraberry 6,662'Spraberry 6,668' +6 more
42-317-41004 STRAIN 20 UNIT 2 · XTO ENERGY INC.
0.1 mi
Santa Rosa 1,009'Yates 2,265'Queen 3,369'Grayburg 3,756'San Andres 3,885'Spraberry 5,649'Dean Cisco Pennsylvanian Wolfcamp

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
9,573–19,975 ftPerforated

Casing (3)

SizeSet DepthCement
11.75"1,183 ft620 sx
8.625"8,183 ft1,375 sx
5.5"20,098 ft2,225 sx

Permit History (1)

Applications (1)

#855506 A XTO ENERGY INC.
received 2019-07-24

Records & Logs

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

W-2/G-1 2021-06-10 log on file
W-2/G-1 2020-07-29 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 32.270274
Lon -101.774937

Well Details

Well Number
2102BH
Max Depth
10,000 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2021-05-04

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