REO (JO-MILL) UNIT

Oil // district 11 // lease#66511

op: GREAT WESTERN DRILLING COMPANY

cum_oil

1.6M BBL

cum_gas

0 MCF

wells

20

production

1993-01 — 2026-03

peak_month

1997-01

-- production_history

cum_oil: 1,613,368 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,944 BBL/mo

Di (annual)

14.9%

b-factor

0.4

EUR

1,284,998 BBL

R-squared

0.907

type

hyperbolic

-- wells (20)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3604GREAT WESTERN DRILLING COMPANY17,8002014-01-09
3511GREAT WESTERN DRILLING COMPANY17,8002013-11-23
3509GREAT WESTERN DRILLING COMPANY17,8002012-04-16
3510GREAT WESTERN DRILLING COMPANY17,8002012-04-16
3508GREAT WESTERN DRLG. CO.17,5001993-08-09
W 1SWGREAT WESTERN DRLG. CO.11,2001990-10-04
W 2SWGREAT WESTERN DRLG. CO.11,2001990-10-04
2503GREAT WESTERN DRLG. CO.27,4001984-03-28
3507TEXANA RESOURCES CORP.17,5001983-12-05
2501GREAT WESTERN DRLG. CO.27,4001983-08-30
W 25SWGREAT WESTERN DRLG. CO.27,4001983-08-30
3602TEXANA RESOURCES CORP.19,8001983-04-20
3603DTEXANA RESOURCES CORP.19,8001983-04-20
3601TEXANA RESOURCES CORP.19,8001983-03-02
3506TEXANA RESOURCES CORP.17,6001982-11-15
3505TEXANA RESOURCES CORP.17,5001982-08-26
3504TEXANA RESOURCES CORP.17,5501982-06-01
3503TEXANA RESOURCES CORP.110,0001981-08-10
3801TEXANA RESOURCES CORP.110,0001981-06-30
3501TEXANA RESOURCES CORP.110,2001980-08-11
EOF // data source: Texas Railroad Commission // 2026