FEATURES

5 MEASURED GROWTH: E. R. VINE & SONS, INC.

13 CONSUMER INSIGHTS & ANALYTICS:
PURCHASING HABITS AT THE PUMP

19 SIGMA’S 50TH ANNIVERSARY—A LOOK BACK, AND FORWARD
OUR FIRST YEARS: THE 60s

31 A RECORD BREAKER:
SIGMA’S 49TH ANNUAL MEETING

COLUMNS

02 viewpoint
SIGMA TURNS 50 AND OTHER GLOBAL MATTERS

27 inside biodiesel
BIODIESEL “TOP 10”

45 A SIGMAPAC THANK YOU

47 inside leadership
TAKING STOCK

49 inside mobile refueling
AS PRICES SOAR, HOW TO PROTECT
YOUR BUSINESS FROM BAD DEBTS

DEPARTMENTS

46 UPCOMING MEETINGS

53 NEW MEMBERS

56 ADVERTISERS INDEX

SPONSORSHIP APPRECIATION

January-February 2008 Issue

On the cover:

Richard Erickson, Jeff LeBeouf, and Mike Keys, of E. R. Vine & Sons, Inc.