TEXAS · WELLS · HOWARD COUNTY · API 42-227-34319 · DISTRICT 7B

Chalk G. O. -D- #22

Y

Howard County · Howard Glasscock (Consolidated) field · Injection  · Vertical

Chalk G. O. -D- #22 (API 42-227-34319) is a well in Howard County operated by Citation Oil & Gas Corp., completed October 17, 1988 and listed as injection on the RRC schedule.

The RRC has issued 2 drilling permits between 1984 and 1988, permitted to 3,250 ft.

It was permitted by Conoco Inc. and has since transferred to Citation Oil & Gas Corp. on the wellbore schedule.

Completion filings report 4 formation tops, including Grayburg, San Andres, Glorieta, Clear Fork.

Its 2 leases have reported 1.19M barrels of oil and 261K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 49 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 249K barrels injected in the 12 months reported through December 2025.

Operator of record

Citation Oil & Gas Corp.

Permitted by Conoco Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 27, 2026
Permits on file
866
Phone
(281) 891-1000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCitation Oil & Gas Corp.
Production reportsCitation Oil & Gas Corp.through Apr 2026
Latest permitConoco Inc.Apr 26, 1988

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

3,250
total depth, ft
2
permits on file
Apr 26, 1988
last permit issued
Oct 17, 1988
completed
1.19M
cumulative oil, bbl
261K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 17, 1988
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 49 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Chalk, G. O. -D- O-10-41216Howard Glasscock (Consolidated)Citation Oil & Gas Corp.321.12M252KDec 2011 – Apr 2026
Chalk, G. O. -D- O-10-2688Howard GlasscockConocophillips Company1773.8K8.48KJan 1993 – Nov 2011

Oil, barrels lease total

Last 12 months 46,906 · prior 12 47,318(-1%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 14,244 · prior 12 15,988(-11%)

01K2K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Conoco Inc.Jan 1993 → Dec 2002
  2. 2Conocophillips CompanyJan 2003 → Jan 2018
  3. 3Citation Oil & Gas Corp.Feb 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
345643-99DrillConoco Inc.Apr 25, 1988Apr 26, 1988—3,250
226501-99DrillConoco Inc.Jan 11, 1984Jan 13, 1984—3,250

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 17, 1988Chalk G. O. -D- O-10-41216Howard Glasscock (Consolidated)Citation Oil & Gas Corp.Injection3,250
Oct 17, 1988Chalk G. O. -D- O-10-41216Howard Glasscock (Consolidated)Citation Oil & Gas Corp.Not on Schedule—
Oct 17, 1988Chalk G. O. -D- O-10-2688Howard GlasscockConocophillips CompanyNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,629 ft elevation.Download CSV →

FormationMD ftSubsea
Grayburg2,223406
San Andres2,269360
San Andres2,276353
Glorieta2,808-179
Glorieta2,831-202
Clear Fork3,122-493

Perforations

Perforated and open-hole intervals.

FromToType
2,2423,104Perforated
2,2762,423Perforated
2,2762,671Perforated
2,2763,104Perforated
2,8313,104Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62599512.25615 S
5.53,2507.875765 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00May 23, 2016Jan 6, 2011—
00May 20, 2016May 3, 2016—
00Mar 1, 2012Jan 6, 2011—
00May 24, 2011Jan 6, 2011—
00Feb 1, 2011Oct 11, 2010—
00Nov 8, 2001Dec 29, 2000—
00Dec 27, 1988Dec 5, 1988Yes
00Dec 16, 1988——

Well logs

1 log loaded from the RRC's log index, the latest received Jul 13, 2009. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
NEUTRON POROSITYSpans Grayburg, San Andres, Glorieta, Clear ForkTIFF1,000 to 3,891Jul 13, 2009run Mar 19, 19833.80

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

249K
bbl, last 12 reported months
4.81M
bbl, all reported
Dec 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000065602H-1 InjectionCanceled Feb 22, 20017501,3002,675–3,200
000065627H-1 InjectionActive2,0001,0502,130–3,110

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 248,714 · prior 12 300,816(-17%)

020K40K20242025

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/22734319, documented in the API reference.