BROWNFIELD 'B'

Oil // district 11 // lease#70486

op: DUNCAN OIL PROPERTIES, INC.

cum_oil

5k BBL

cum_gas

0 MCF

wells

1

production

2013-09 — 2022-11

peak_month

2013-09

-- production_history

cum_oil: 4,993 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

103 BBL/mo

Di (annual)

15.7%

b-factor

0.0

EUR

7,772 BBL

R-squared

0.680

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ESTORIL PRODUCING CORPORATION26,8002013-09-09
EOF // data source: Texas Railroad Commission // 2026