According to Forbes.com:

Net Worth: $2.0 billion
Source: Oil/Gas, oil, investments
Inherited and growing

Age: 62
Marital Status: Married, 2 children, 1 divorce
Hometown: Fort Worth, TX
Education: Stanford University, Master of Business Administration

Family’s Bass Enterprises hit hard by Katrina: oil storage tank near New Orleans leaked 90,000 barrels into containment pond. But gains from oil boom more than make up for it. Drilling in the western states, Gulf of Mexico and internationally. Planning new deepwater oil wells off Nova Scotia. Family fortune founded by oil baron uncle Sid Richardson. Diversified into Disney, John Wiley & Sons publishing and Human Genome Sciences. Big shots of Fort Worth: Sid runs investments, Lee avid outdoorsman, Ed does real estate and backed Biosphere 2 project. Other brother Robert (see) invests on his own.