MACON UNIT

Oil // district 11 // lease#69977

op: SCHALK OIL COMPANY, INC.

cum_oil

27k BBL

cum_gas

0 MCF

wells

1

production

2012-11 — 2026-03

peak_month

2013-01

-- production_history

cum_oil: 27,375 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

537 BBL/mo

Di (annual)

54.8%

b-factor

0.5

EUR

21,920 BBL

R-squared

0.683

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SCHALK OIL COMPANY, INC.15,4002012-10-09
EOF // data source: Texas Railroad Commission // 2026