The group's principal activities are to explore and develop oil and gas properties and to distribute meat products. The group operates its businesses through its wholly owned subsidiaries, national heritage sales corporation (national), uhc petroleum corporation (petroleum), uhc petroleum services corporation (services) and uhc New Mexico corporation (New Mexico). The group operates in two segments: oil and gas and meat. New Mexico and services are engaged in activities related to the oil and gas industry. Petroleum holds leases to approximately 10,500 acres of oil and gases interests in south Texas that produce from the val verde basin. New Mexico holds properties in the southeastern New Mexico portion of the permian basin. Services act as the field operator for the oil and gas properties located in Texas. National supplies meat and poultry products to retail food stores.