Gas prices have fallen nearly 27 percent to an average of $2.30 a gallon in Dallas in the last year, according to GasBuddy.com. Will 2015 be a better year for you? Probably so — if you don’t work in the energy industry. Texas has diversified its economy significantly in the last 20 years, but oil is still king. So when oil prices plunge, it has a big effect on the state’s economy. How big? Next year may answer that question. The Texas economic engine is likely to move at a slower speed next year, even as the U.S. economy picks up steam. Texans — and all Americans — face an unprecedented time of economic transition […]