INTRODUCTION
One of the most important functions of a petroleum manager is the adequate forecasting of petroleum
requirements. Without an accurate forecast of requirements, the orderly flow of petroleum products is
threatened. There are five methods for computing petroleum requirements. They are listed in order from
best to worst: historical data method, combat profile, fuel consumption unit (STANAG 2115), equipment
consumption, and gallons per person per day.
PART A - HISTORICAL DATA METHOD
The historical data method is the best method and considers the following factors: same vehicles, same
distances, and similar resupply source, weather, terrain, etc. Record keeping for actual consumption during
major training exercises, tactical marches, etc., is essential for correct calculations using this method.
PART B - COMBAT PROFILE
The combat profile method tracks combat vehicles only. Referring to Tables 4-1 and 4-2, you must use FM
101-10-1/2, Table 2-12 (line item number, fuel NSN, equipment type, etc.), to obtain consumption rates and
table 2-14 (geographical usage rates). Add together the subtotals and multiply by the number of vehicles to
get the total fuel requirement.
CONSUMPTION
USAGE
FACTOR
RATES
SUBTOTAL
IDLE
X
=
CROSS COUNTRY
X
=
SECONDARY ROADS
X
=
PART C - FUEL CONSUMPTION UNIT
The NATO STANAG 2115 method is a standard used by NATO in determining fuel consumption. The fuel
consumption of unit (FCU) considers combat, terrain, and climate. You must use tables found in FM 101-10-
1/2, table 2-12 (line item number, fuel NSN, equipment type, etc.) and table 2-13 (geographical usage rates).
You must use table 3-1 in FM 10-13 (Supply and Service Reference Data (combat, terrain, and climate).
Refer to Tables 4-3 and 4-4.
COMBAT
QUANTITY
USAGE
CONSUMPTION
X
OF
X
RATE
=
TOTAL GALLONS
RATE
EQUIPMENT
TOTAL
COMBAT
TERRAIN
CLIMATE
GALLONS
X
FACTOR
X
FACTOR
X
FACTOR
=
FCU
PART D - EQUIPMENT CONSUMPTION
When using the equipment consumption method, you must know what equipment is to be used (TOE, TDA,
or equipment listing) and must use tables found in FM 101-10-1/2, tables 2-12 (line item number, fuel NSN,
equipment type, etc.) & 2-13 to obtain equipment usage rates. Geographical area (FM 101-10-1/2, Table 2-
14) will also factor in the equipment consumption method. This method may be used at all levels. Here is
an example:
Combat
Quantity
Area
Bulk
Consumption
X
Equipment
X
Usage
= Fuel Rate
Rate
Requirement
4-2
QM 5092
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