The Eagle Ford Shale is a significant geological formation located in South Texas, known for its rich deposits of oil and natural gas. It spans approximately 50 miles wide and 400 miles long, making it one of the most productive shale plays in the United States. The formation was discovered in the early 2000s and has since attracted considerable investment and development. The Eagle Ford Shale is characterized by its diverse geology, which includes various rock types that contribute to its hydrocarbon production. The area has seen advancements in drilling technologies, such as hydraulic fracturing and horizontal drilling, which have enhanced extraction efficiency and increased output.