ARK-O Since 1977
Petroleum & Car Wash Equipment
PO Box 248 Tontitown, AR 72770
Phone: (479) 361-3000

ARK-O is a registered service agent authorized to inspect and test gasoline and diesel metering devices and pumps used for commercial transactions.


Dresser Wayne dispensers

Dresser Wayne

ARK-O is the Dresser Wayne authorized sales and service provider of equipment and parts for Northwest Arkansas and Southwest Missouri. The new OVATION line is the most revolutionary fuel dispenser in the petroleum business.



ARK-O is the ONLY authorized Tokheim Service and Parts provider in the area.



ARK-O is the ONLY authorized Bennett Service and Parts provider in the area.


Tank and Line Testing Service

ARK-O is able to test underground tanks with a product level between empty and 95% full.
This means no added inventory or inventory management is needed prior to testing. This will save you money, time and inconvenience. We are also certified to test lines, leak detectors, impact valves and can also collect cathodic protection readings.
Please call for a quote.


Car Wash Equipment

ARK-O is the authorized Jim Coleman Car Wash Equipment sales and service provider for Northwest Arkansas, Southwest Missouri, and Northeast Oklahoma. Jim Coleman manufactures state-of-the-art automatic and self-service car wash equipment. The Water Wizard automatic car washes you may have seen are from the Jim Coleman line.


Entry Wizard Card Readers

ARK-O is authorized for the sale and installation of the GoPay Terminal. This is the most cost efficient type of retrofit card reader we know of for adding card readers to almost any electronic dispenser.


Please contact ARK-O Petroleum and Car Wash Equipment for information and pricing concerning the above or for any need you have pertaining to sales, service, installation or consulting on fueling equipment or car wash equipment.

ARK-O Petroleum and Car Wash Equipment also offers "Turnkey" from the ground p building of Convenience stores, Car Washes, and Fueling Stations.

Incon automatic tank gauging equipment.

STIP 3 Tanks
Fiberglass clad steel tanks
Containment solutions fiberglass tanks.

Petroleum/fuel Tank removal and closure service.

Meter Calibration