Legislators in Texas, the biggest energy producer among U.S. states, will begin deliberating its next two-year budget with a surplus forecast today to match an $8.8 billion record set in 2007. The Texas economy has topped budget projections over the past 15 months, as booming energy output fueled job growth and an 11 percent fiscal first-quarter gain in sales-tax receipts, the biggest source of general-fund revenue.