American 228 pumping unit

CDR 114 pumping unit.

Kincaid 160 pumping unit.

gabel 160 pumping unit with a 3 cylinder lister engine.

sentry 114 pumping unit with a 2 cylinder lister-peter diesel engine...

cabot pumping unit.

unknown 456 pumping unit with a c-96 arrow engine.

sentry 160 strapjack pumping unit.

190 pumping unit with a c-66 arrow engine.

American 160 pumping unit with a Isuzu diesel engine. (LOST FOOTAGE...)

when the governor decides to go bye-bye...

Bethlehem pumping unit.

CMFI 114 pumping unit.

when the poo poo hits the fan...

Lufkin 114 pumping unit

American 456 pumping unit.

KANSAS OIL!!! A new well gets turned on...

EMSCO 190 pumping unit

Bethlehem pumping unit

Parkersburg 142 pumping unit with a c-96 arrow engine part 3-3

Parkersburg 142 pumping unit with a c-96 arrow engine part 1-3.

OCS/Parkersburg 114 pumping unit.

Lufkin 160 pumping unit

Bethlehem 80d pumping unit with a c-66 arrow engine

Parkersburg 114 pumping unit with a c-66 arrow engine.

Churchill pumping unit.

sentry 160 pumping unit with a c-96 arrow engine.

sentry 228 pumping unit with a c-106 arrow engine

When lightning strikes...

sentry 456 pumping unit with a Isuzu diesel engine