Manufacturing - Petroleum and coal products 4,600
Wholesale trade - Petroleum and petroleum products 400
Gasoline service stations 100
Of course, if we're going to include the attendant industries...
Automotive dealers and service stations 1,100
Auto repair, services, and parking 500
Wholesale trade - Motor vehicles, parts, and supplies 1,300
corrected in edit (I was awarding an extra ~9,000 jobs to the petroleum industry)