TEXAS · WELLS · GAINES COUNTY · API 42-165-37360 · DISTRICT 7B

North Robertson San Andres Unit #28W

Y

Gaines County · Harris (San Andres) field · Injection  · Vertical

North Robertson San Andres Unit #28W (API 42-165-37360) is a well in Gaines County operated by Citation Oil & Gas Corp., completed April 26, 2014 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit (amended twice), issued April 5, 2011, permitted to 4,745 ft.

Completion filings report 6 formation tops, including Rustler, Tansill, Yates, Seven Rivers.

Its 3 leases have reported 2.28M barrels of oil and 1.35M mcf of gas since July 2010, last reporting volume in April 2026. The leases carry 163 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 72.2K barrels injected in the 12 months reported through October 2025.

Operator of record

Citation Oil & Gas Corp.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 27, 2026
Permits on file
867
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 permitCitation Oil & Gas Corp.Apr 5, 2011
4,745
total depth, ft
3
permits on file
Apr 5, 2011
last permit issued
Apr 26, 2014
completed
2.28M
cumulative oil, bbl
1.35M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2010 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 26, 2014
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 3 leases this well is completed on; they carry 163 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
North Robertson San Andres Unit O-11-71163Harris (San Andres)Citation Oil & Gas Corp.78797K519KFeb 2020 – Apr 2026
North Robertson San Andres Unit O-11-70072Robertson, N. (San Andres)Citation Oil & Gas Corp.731.3M744KDec 2013 – Feb 2020
Exxon Fee "B" O-11-69601Robertson, N. (San Andres)Citation Oil & Gas Corp.12193K87KJul 2010 – Nov 2013

Oil, barrels lease total

Last 12 months 92,903 · prior 12 109,914(-15%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 68,231 · prior 12 69,532(-2%)

05K10K202420252026

Chain of custody

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

  1. 1Citation Oil & Gas Corp.Aug 2010 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
712893-97DrillCitation Oil & Gas Corp.Jun 22, 2011Apr 5, 2011May 25, 20114,850
712893-98DrillCitation Oil & Gas Corp.May 3, 2011Apr 5, 2011—4,850
712893-99DrillCitation Oil & Gas Corp.Mar 25, 2011Apr 5, 2011—4,750

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 26, 2014North Robertson San Andres Unit O-11-71163Harris (San Andres)Citation Oil & Gas Corp.Injection4,745
Apr 26, 2014North Robertson San Andres Unit O-11-70072Robertson N. (San Andres)Citation Oil & Gas Corp.Not on Schedule—
Jul 20, 2011Exxon Fee B O-11-69601Robertson N. (San Andres)Citation Oil & Gas Corp.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 3,341 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler1,7651,576
Tansill2,748593
Yates2,872469
Seven Rivers3,111230
Grayburg4,139-798
San Andres4,411-1,070

Perforations

Perforated and open-hole intervals.

FromToType
4,5674,674Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,83012.251,040 S
5.54,7457.8751,540 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
00Nov 3, 2021Apr 29, 2014—
00Sep 16, 2014Apr 29, 2014—
00Jan 9, 2014Aug 4, 2011Yes
00Oct 14, 2011Aug 4, 2011Yes

Well logs

1 log loaded from the RRC's log index, the latest received Feb 2, 2015. Density, Neutron, Resistivity. 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
COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Rustler, Tansill, Yates, Seven Rivers, Grayburg, San AndresTIFF1,824 to 4,738Feb 2, 2015run May 30, 20118.69

"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. The University Lands library has no per-well link: then paste it into its search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

72.2K
bbl, last 12 reported months
1.18M
bbl, all reported
Oct 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000103705H-1 InjectionActive2,0002,0004,300–5,000

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

Last 12 months 72,190 · prior 12 85,069(-15%)

05K10K20242025

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/16537360, documented in the API reference.