Natural oil based grease compositions and processes for making such compositions

A grease composition comprising:

• (a) from 89 to 93 weight percent of a lubricating base oil,
• (b) from 6 to 11 weight percent of a thickener component comprising one or more of (i) one or more natural oil derivatives, (ii) one or more hydrogenated metathesized natural oils or a natural oil derivative thereof, comprising a hydrogenated metathesized soybean oil or a hydrogenated metathesized soybean oil based wax, (iv) one or more carboxylic acids and/or derivatives thereof, and (v) one or more of a metal base compound;
• and
• (c) from 1 to 5 weight percent of one or more optional additives selected from the group consisting of:
• metal deactivators, antioxidants, antiwear agents, rust inhibitors, viscosity modifiers, extreme pressure agents, and corrosion inhibitors.