Answer :
The four main regions of Texas are Coastal Plains, Great Plains, Mountains and Basins, and the North Central Plains.
The Coastal Plains Natural ResourcesOil & Gas, Ranching, Seaports (fishing), Lumber in East, Grasslands
North Central Plains Natural ResourcesOil & Gas, Hay, Cotton, Dairy & Beef Cattle
The Mountains and Basins Natural ResourcesPlants - short grasses, shrubs, desert plants in plateaus and basins
Great Plains Region of Texas Natural ResourcesOil & Gas, Corn, Cotton, Beef Cattle
The Coastal Plains Natural ResourcesOil & Gas, Ranching, Seaports (fishing), Lumber in East, Grasslands
North Central Plains Natural ResourcesOil & Gas, Hay, Cotton, Dairy & Beef Cattle
The Mountains and Basins Natural ResourcesPlants - short grasses, shrubs, desert plants in plateaus and basins
Great Plains Region of Texas Natural ResourcesOil & Gas, Corn, Cotton, Beef Cattle
By residents, the state is generally divided into North Texas, East Texas, Central Texas, South Texas, West Texas (and sometimes the Panhandle), but according to the Texas Almanac, Texas has four major physical regions: Gulf Coastal Plains, Interior Lowlands, Great Plains, and Basin and Range Province. I believe these are the ones.