The Northeast Texas (Region D) Regional Water Planning Group's area encompasses all or parts of 19 counties. While largely rural, the region includes the cities of Longview, Texarkana and Greenville. The planning area overlaps large portions of the Red, Sulphur, Cypress and Sabine river basins and smaller parts of the Trinity and Neches river basins. NETRWPG's main economic base is agribusiness, including a variety of crops, as well as cattle and poultry production. Timber, oil and gas, and mining are significant industries in the eastern portion of the area as well.