BUNGER/SORRELL UNIT

Oil // district 9 // lease#16453

op: W.R. GUFFEY LLC

cum_oil

77k BBL

cum_gas

0 MCF

wells

1

production

2008-02 — 2026-03

peak_month

2009-01

-- production_history

cum_oil: 76,821 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,049 BBL/mo

Di (annual)

48.9%

b-factor

1.4

EUR

113,704 BBL

R-squared

0.905

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1GUFFEY, WM. R.12,3502007-09-14
EOF // data source: Texas Railroad Commission // 2026