What would be the best car for me?

Im a 20 yr old country boy in college I will be moving to Knoxville to go to UT I have a truck now but with the price of gas i cant afford to drive it anymore like I said im a country boy so I need something the will fit my life style (Fishing poles, Guns, Country Driving, ETC.) Whatever I buy will need to last 4-5 years with minimal problems and it needs to be very reliable and EASY ON GAS... and fairly new, I am not wanting to spend over $15,000 and also travel a lot so I will put about 150,000 miles on it over 5yrs so like I said it needs to be very reliable. but Idon't know where to start