As a consumer, you can only buy olestra in savory snacks, not as a
separate cooking oil. (I suppose that if you are a savory snack food
manufacturer, you could negotiate a deal with Procter & Gamble to buy
olestra for use in making fat-free savory snacks.)
A recent article explains the limitations on olestra. In particular:
"In 1996, following an eight-year review, the FDA approved Olestra, a
cooking oil that adds no fat or calories to food. ... But they only
allowed its use in chips, crackers, and other 'savory snacks,' though
Olestra can also be used instead of margarine, lard, butter, and oils
in frying, baking, and sautéing. ...
Not only has the FDA rejected overtures for wider use of the fat
substitute, but the agency continues to require labels on foods
containing Olestra warning of possible gastrointestinal symptoms ...."
"The Drug Bureaucracy", by Henry I. Miller (February 3, 2003)
National Review Online
So, although one might think that olestra would be available to the
general public as a cooking oil, it is not. (If the situation
changes, you will probably be able to read about it on Olean's web
site ( http://www.olean.com/ )).
Search terms used on Google:
olestra "savory snacks"
fda olestra "savory snacks" "cooking oil"