FIRST NATIONAL BANK "C"

Oil // district 13 // lease#16449

op: SAPPINGTON OIL CO.

cum_oil

50k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

2014-03

-- production_history

cum_oil: 50,284 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

759 BBL/mo

Di (annual)

374.5%

b-factor

1.6

EUR

30,416 BBL

R-squared

0.460

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4CROSS, DWIGHT M. DRLG. CO., INC.14,0002002-03-12
142-337-82613--------
EOF // data source: Texas Railroad Commission // 2026