42-283-34432

Final Completion

STS A

LA SALLE County · District 1 · SIERRA RESOURCES LLC · A.W.P. (OLMOS)

Permits

3

Max Depth

10,000 ft

First Permit

2013-12-09

Latest Activity

2018-12-20

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2013-12-26

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2013-12

Last Production

2026-07

H-1 Injection Active UIC #000117843 permitted 2019-03-01

Permitted Volume

5,000 bbl/d

Max Pressure

2,850 psi

Injection Interval

5,700–6,800 ft

Injected (12mo)

391,259 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-10-01)

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Lease Production

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

Formation Tops (24) Elevation 336 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SPARTA 1,966 ft-1,630 ft
QUEEN CITY 2,226 ft-1,890 ft
QUEEN CITY 2,270 ft-1,934 ft
REKLAW 3,480 ft-3,144 ft
CARRIZO 3,959 ft-3,623 ft
B/ CARRIZO5,188 ft-4,852 ft
B/CARRIZO5,188 ft-4,852 ft
WALES5,755 ft-5,419 ft
MIDWAY 6,500 ft-6,164 ft
NAVARRO 7,815 ft-7,479 ft
NAVARRO 7,824 ft-7,488 ft
OLMOS 8,972 ft-8,636 ft
TAYLOR LIT (Taylor)9,005 ft-8,669 ft
TAYLOR LIT ZONE (Taylor)9,060 ft-8,724 ft
OLMOS 9,138 ft-8,802 ft
OLMOS 9,146 ft-8,810 ft
AUSTIN CHALK
BUDA - H2S (Buda)
EAGLE FORD - H2S (Eagle Ford)
EDWARDS - H2S (Edwards)
ESCONDIDO
OLMOS - DISPOSAL (Olmos)
WILCOX - DISPOSAL (Wilcox)
YEGUA

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
42-283-34645 STS A · WELHAUSEN OPERATING COMPANY, LP
0.9 mi
Sparta 1,966'Queen City 2,226'Reklaw 3,427'B/ CARRIZO 5,156'WALES 5,788'Midway 6,487'Olmos 8,996'Escondido Pearsall Austin Chalk Wilcox Edwards +4 more
42-283-36511 SR BREGMAN · SIERRA RESOURCES, LLC
1.5 mi
Sparta 1,771'Queen City 1,941'Wilcox 4,921'Escondido 7,517'Olmos 8,787'Eagle Ford Buda Yegua Austin Chalk Edwards
42-283-36513 SR ALTUVE · SIERRA RESOURCES, LLC
1.5 mi
Sparta 1,774'Queen City 1,987'Wilcox 4,925'Escondido 7,505'Olmos 8,768'Yegua Austin Chalk Buda Edwards Eagle Ford
42-311-37004 STS D · VERMILLION PRODUCTION, INC.
1.6 mi
Frio 200'Yegua 2,048'Wilcox 5,284'Anacacho Escondido Austin Chalk Eagle Ford Olmos Navarro Catahoula
42-283-37101 STS 'A' · SANDPOINT OPERATING, LLC
1.8 mi
Sparta 1,763'Queen City 2,010'Wilcox 3,734'Escondido 7,107'Olmos 8,855'Eagle Ford Buda Yegua Austin Chalk Edwards
42-311-37598 GB EAST · 4020 SWD, LLC
1.8 mi
Yegua 900'Wilcox 3,700'Catahoula Navarro Escondido Frio Austin Chalk Anacacho Eagle Ford Olmos
42-283-37208 SP5 · BLACKBRUSH O & G, LLC
2.0 mi
Yegua 450'Sparta 1,718'Queen City 1,965'Wilcox 4,932'Escondido 7,085'Olmos 8,837'Austin Chalk Buda Edwards Eagle Ford
42-283-37209 SP5 · BLACKBRUSH O & G, LLC
2.0 mi
Yegua 660'Sparta 1,718'Queen City 1,965'Wilcox 4,879'Escondido 7,103'Olmos 8,820'Austin Chalk Buda Edwards Eagle Ford

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 (2)

IntervalType
5,756–6,734 ftPerforated
9,146–9,154 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,230 ft1,632 sx
7"9,416 ft548 sx

Permit History (3)

Applications (3)

#847991 A SIERRA RESOURCES, LLC
received 2018-12-19
#774960 A WELHAUSEN OPERATING COMPANY, LP
received 2014-03-20
#774960 A FIRST ROCK, INC.
received 2013-12-04

Records & Logs

7 completion filings on record · 4 with log images at RRC.

W-2/G-1 2019-04-03
W-2/G-1 2018-06-15
W-2/G-1 2017-04-26
W-2/G-1 2016-07-20 log on file
W-2/G-1 2015-08-28 log on file
W-2/G-1 2014-04-02 log on file

+1 more filings

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

Lat 28.254284
Lon -98.805428

Well Details

Well Number
1S
Max Depth
10,000 ft
Drill Type
Vertical
County
LA SALLE
District
1
Completed
2013-12-26

Operator

Location
HOUSTON
P-5 Status
Inactive (filed 2020-09-04)
Cum Oil (all leases)
4,381 bbl
Cum Gas (all leases)
53,062,603 mcf
Total Permits
72