42-227-30283

CHALK, G. O. "B"

HOWARD County · District 8 · CONOCO INC.

Permits

Max Depth

3,900 ft

First Permit

1981-12-22

Latest Activity

1983-03-18

Lifespan

1 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

HOWARD County disposal market →

H-1 Injection Active UIC #000110137 permitted 2015-01-13

Permitted Volume

4,000 bbl/d

Max Pressure

1,250 psi

Injection Interval

2,600–3,900 ft

Injected (12mo)

280,578 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Operator History

Chain of Custody

CONOCO INC. 1993-2002→ CONOCOPHILLIPS COMPANY 2003-2018→ CITATION OIL & GAS CORP. 2018-2026

Lease Production

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

Formation Tops (4) Elevation 2,447 ft (DF)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
GRAYBURG	2,060 ft	+387 ft
GLORIETA	2,644 ft	-197 ft
CLEAR FORK	2,942 ft	-495 ft
TUBB	3,530 ft	-1,083 ft

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 ↗

Perforations (3)

Interval	Type
2,665–3,037 ft	Perforated
3,201–3,569 ft	Perforated
?–3,828 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	324 ft	250 sx
4.5"	3,900 ft	475 sx

Permit History (2)

#189742 Recompletion

CHALK, G. O. "B" · 3,900 ft

1983-03-18

#147407 Recompletion

CHALK, G.O. -B- · 3,900 ft

1981-12-22

Applications (2)

#189742 A CONOCO INC.

received 1983-03-18

#147407 A CONOCO INC.

received 1981-12-22

Records & Logs

3 completion filings on record.

W-2/G-1 2015-03-26

W-2/G-1 1971-09-10

Completion packets + logs ↗ Wellbore 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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in HOWARD County.

Well Details

Well Number: 12
Max Depth: 3,900 ft
Drill Type: Vertical
County: HOWARD
District: 8
Operator: CONOCO INC.

Operator

Name: CONOCO INC
Location: HOUSTON
P-5 Status: Inactive (filed 2011-08-01)
Cum Oil (all leases): 47,167,767 bbl
Cum Gas (all leases): 1,813,222,856 mcf
Total Permits: 4,644