WANDA

Oil // district 9 // lease#16907

op: COG OPERATING LLC

cum_oil

1.1M BBL

cum_gas

0 MCF

wells

11

production

2009-02 — 2026-03

peak_month

2014-04

-- production_history

cum_oil: 1,063,625 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

20,402 BBL/mo

Di (annual)

108.7%

b-factor

1.4

EUR

1,385,877 BBL

R-squared

0.806

type

hyperbolic

-- wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
532HCOG OPERATING LLC110,5002014-06-19
531HCOG OPERATING LLC112,0002013-11-15
507COG OPERATING LLC112,0002013-06-28
516COG OPERATING LLC111,0002011-04-11
505COG OPERATING LLC111,0002011-03-29
508COG OPERATING LLC110,6302010-11-30
515COG OPERATING LLC111,0002010-04-23
514COG OPERATING LLC110,8002009-06-12
501COG OPERATING LLC110,8002009-03-03
504HENRY PETROLEUM LP110,8002009-01-05
503HENRY PETROLEUM LP110,8002008-12-30
EOF // data source: Texas Railroad Commission // 2026