CONCENTRATIONS (Tables)

12 Months Ended

Oct. 31, 2017

Granite Falls Energy, LLC Excluding Heron Lake BioEnergy, LLC | Revenues.

Schedule of concentration risk

	October 31, 2017	October 31, 2016	October 31, 2015
Eco-Energy, Inc. - Ethanol	81.8%	80.3%	79.1%
RPMG, Inc. - Distillers' Grains & Corn Oil	17.8%	19.7%	20.7%

Granite Falls Energy, LLC Excluding Heron Lake BioEnergy, LLC | Accounts receivable

Schedule of concentration risk

	October 31, 2017	October 31, 2016
Eco-Energy, Inc. - Ethanol	82.0%	70.2%
RPMG, Inc. - Distillers' Grains & Corn Oil	16.3%	26.5%

Heron Lake BioEnergy, LLC | Revenues.

Schedule of concentration risk

	October 31, 2017	October 31, 2016	October 31, 2015
Eco-Energy, Inc. - Ethanol	81.3%	78.5%	76.9%
Gavilon Ingredients, LLC - Distillers' Grains	13.7%	15.4%	19.2%
RPMG, Inc. - Corn Oil	4.5%	4.4%	2.4%

Heron Lake BioEnergy, LLC | Accounts receivable

Schedule of concentration risk

	October 31, 2017	October 31, 2016
Eco-Energy, Inc. - Ethanol	86.8%	78.6%
Gavilon Ingredients, LLC - Distillers' Grains	7.0%	11.1%
RPMG, Inc. - Corn Oil	4.3%	3.3%