TEXAS · WELLS · TYLER COUNTY · PFLUGER-BLACK STONE A-20 LEASE · API 42-457-30612 · DISTRICT 06

Pfluger-Black Stone A-20 #1

Y

Tyler County · Brookeland (Austin Chalk 8800) field · Producing  · Horizontal

Pfluger-Black Stone A-20 #1 (API 42-457-30612) is a horizontal well in Tyler County operated by Zarvona Energy LLC, completed April 16, 2006 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 3, 2005, permitted to 13,666 ft.

It was permitted by Anadarko E&P Company LP and has since transferred to Zarvona Energy LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Wilcox, Midway, Austin Chalk, Taylor.

Its lease has reported 645K barrels of oil and 4.24M mcf of gas since April 2006, last reporting volume in April 2026.

Operator of record

Zarvona Energy LLC

Permitted by Anadarko E&P Company LP; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Jun 2, 2026
Permits on file
98
Phone
(713) 600-0600

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleZarvona Energy LLC
Production reportsZarvona Energy LLCthrough Apr 2026
Latest permitAnadarko E&P Company LPNov 3, 2005

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

13,666
total depth, ft
2
permits on file
Nov 3, 2005
last permit issued
Apr 16, 2006
completed
645K
cumulative oil, bbl
4.24M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2006 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 16, 2006
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 lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Pfluger-Black Stone A-20 G-6-222165Brookeland (Austin Chalk, 8800)Zarvona Energy LLC1645K4.24MApr 2006 – Apr 2026

Gas, mcf lease total

Last 12 months 52,875 · prior 12 62,738(-16%)

05K10K202420252026

Chain of custody

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

  1. 1Anadarko E&P Company LPApr 2006 → Dec 2012
  2. 2Anadarko E&P Onshore LLCJan 2013 → Mar 2016
  3. 3Zarvona Energy LLCApr 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
608800-98DrillAnadarko E&P Company LPOct 9, 2006Nov 3, 2005Nov 16, 200514,000
608800-99DrillAnadarko E&P Company LPNov 1, 2005Nov 3, 2005Nov 16, 200514,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 16, 2006Pfluger-Black Stone A-20 G-6-222165Brookeland (Austin Chalk 8800)Zarvona Energy LLCProducing13,666

Formation tops

As filed on W-2/G-1. Subsea from 353 ft elevation.Download CSV →

FormationMD ftSubsea
Wilcox5,971-5,618
Midway10,326-9,973
Austin ChalkBASE AUSTIN CHALK12,516-12,163
Taylor12,668-12,315
Austin Chalk13,141-12,788
Austin ChalkAUSTIN A MARKER13,490-13,137

Perforations

Perforated and open-hole intervals.

FromToType
13,28117,727Perforated
13,29119,700Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,12514.751,700 S
7.62513,1269.625590 S
7.62513,2769.625590 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
00Apr 4, 2007Aug 21, 2006Yes
00Nov 28, 2006——

Well logs

3 logs loaded from the RRC's log index, the latest received May 1, 2009. Cased hole. 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
SURVEYS CASED HOLESpans TaylorTIFF13,233 to 19,644Apr 30, 2009run Apr 8, 20060.81
SURVEYS CASED HOLESpans Midway, Austin Chalk, TaylorTIFF11,666 to 17,727May 1, 2009run Feb 23, 20061.60
SURVEYS CASED HOLESpans TaylorTIFF13,086 to 13,528May 1, 2009run Jan 3, 20060.41

"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.

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/45730612, documented in the API reference.