You are asked to identify an employer when you donate.
Try a search here, and take a look at what you come up with in your zip code, for example.
http://www.opensecrets.org/indivs/index.phpCOKER, JAMES
DUNCAN,OK 73533 HALLIBURTON/TOOL TECH 7/29/08 $1,000 Obama, Barack (D)
ENSIGN, PHILO
DENVER,CO 80209 HALLIBURTON/GEOPHYSICIST 6/7/08 $500 Obama, Barack (D)
GREENE, FORREST
DENVER,CO 80210 HALLIBURTON COMPANY/PROGRAM MANAGER 8/6/08 $250 Obama, Barack (D)
GREENE, FORREST
DENVER,CO 80210 HALLIBURTON COMPANY/PROGRAM MANAGER 9/29/08 $250 Obama, Barack (D)
GREENE, FORREST
DENVER,CO 80210 HALLIBURTON COMPANY/PROGRAM MANAGER 8/20/08 $250 Obama, Barack (D)
GUMMATTIRA, KAVERIAPPA
KATY,TX 77450 HALLIBURTON COMPANY/FINANCE & ACCOU 10/17/08 $250 Obama, Barack (D)
GUMMATTIRA, KAVERIAPPA
KATY,TX 77450 HALLIBURTON COMPANY/FINANCE & ACCOU 10/17/08 $250 Obama, Barack (D)
GUMMATTIRA, KAVERIAPPA
KATY,TX 77450 HALLIBURTON COMPANY/FINANCE & ACCOU 10/17/08 $250 Obama, Barack (D)
KILLOUGH, JOHN
HUMBLE,TX 77338 HALLIBURTON/RESEARCH FELLOW 2/6/08 $250 Obama, Barack (D)
LINDQUIST, GRETCHEN
HOUSTON,TX 77007 HALLIBURTON/IT ANALYST 6/4/08 $250 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 4/28/08 $1,050 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 3/5/08 $1,000 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 8/23/08 $500 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 8/23/08 $500 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 11/3/07 $250 Obama, Barack (D)
NELSON, DAVID
CENTENNIAL,CO 80112 HALLIBURTON/SOFTWARE DEVELOPER 8/23/08 $-500 Obama, Barack (D)
ROBERT, SHOCK
BRIGHTON,CO 80601 HALLIBURTON/SOFTWARE DEVELOPER 9/2/08 $250 Obama, Barack (D)
SHOCK, ROBERT
BRIGHTON,CO 80601 HALLIBURTON/SOFTWARE DEVELOPER 2/10/08 $250 Obama, Barack (D)
SINES, LAURIE
HOUSTON,TX 77077 HALLIBURTON/SOFTWARE PROJECT MANAGE 1/29/08 $250 Obama, Barack (D)
SINES, LAURIE
HOUSTON,TX 77077 HALLIBURTON/PROJECT MANAGER 8/31/08 $200 Obama, Barack (D)
SINES, LAURIE
HOUSTON,TX 77077 HALLIBURTON/SOFTWARE PROJECT MANAGE 4/29/08 $200 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 2/4/08 $500 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 2/24/08 $500 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 3/29/08 $409 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 6/6/08 $250 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 1/22/08 $250 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 1/22/08 $250 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 6/6/08 $250 Obama, Barack (D)
THURMAN, MONICA
HOUSTON,TX 77021 HALLIBURTON/HUMAN RESOURCES ATTORNE 6/6/08 $-250 Obama, Barack (D)
VELAZQUEZ, MARTIN
CARROLLTON,TX 75007 HALLIBURTON/ENGINEER 9/10/08 $201 Obama, Barack (D)
WILLIAMS, SHERRY
HOUSTON,TX 77006 HALLIBURTON COMPANY/ATTORNEY 10/24/08 $600 Obama, Barack (D)
WILLIAMS, SHERRY
HOUSTON,TX 77006 HALLIBURTON COMPANY/ATTORNEY 9/12/08 $300 Obama, Barack (D)
WILLIAMS, SHERRY D
HOUSTON,TX 77006 HALLIBURTON/VICE PRESIDENT 3/2/08 $300 Obama, Barack (