Current hours for Sumner and Maynard: 7:30am-4:00pm and at Oelwein: 7:30am-5:00 pm.

We have EXTENDED HARVEST HOURS at our grain locations. Visit our locations page for details or contact your preferred location for exact times.

Marble Rock, IA

533 Bradford Street
Marble Rock, IA 50653
Phone: 641-748-2610

Grain Storage Capacity: 1,950,000 bushels

Full Time Team Members: 16

Railroad: Iowa Northern


Grain storage, bagged feed, LP (sales, service, delivery), refined fuel (sales, delivery), liquid chemicals and fertilizer, dry fertilizer, anhydrous (at location), and agronomy sales

Special Features:

23,000 ton dry fertilizer plant, 30,000 and 18,000 gallon anhydrous storage tanks, and a UAN (32 percent) liquid fertilizer plant


CLICK HERE for some history of your cooperative in Marble Rock.

Marble Rock, IA Hours

Extended Harvest Hours:

Monday-Saturday: 7:30am- 7:30pm
Sunday: 11:00am- 6:00pm

Normal Hours:

Monday-Friday: 7:30am- 4:00pm
Saturday/Sunday: Check with location

Location Team Leader:  | Assistant Location Team Leader: Eric Bruder
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