Methodist Church was the largest Methodist body and the Roman Catholic Diocese of Shreveport was the primary Catholic jurisdiction. The same study also named Islam the second-largest religion in the area, with Shreveporter Muslims making up about 14% of Louisiana's total Muslim-affiliated population. In a separate study by the Association of Religion Data Archives for 2020, the Southern Baptists had 111,745 members spread throughout 151 churches in the area; and the United Methodists had 19,114 members in 46 churches. Historically African American Christian denominations including the National Baptist Convention, National Baptist Convention of America, and National Missionary Baptist Convention had 32,132 members altogether. Economy Shreveport–Bossier City is the economic and cultural center of Northwest Louisiana and the wider Ark-La-Tex tri-state region. It is also the largest economic metropolitan area in North Louisiana. The area's economic activity is centered in the city of Shreveport, the parish seat of Caddo Parish. Much of the Shreveport–Bossier City metropolitan area's economy is based on oil and natural gas, manufacturing, casinos, restaurants, and commerce. The city of Shreveport was once a major player in the national oil industry. Standard Oil of Louisiana and United Gas Corporation were headquartered in the city until the 1960s and 1980s. Since the downturn in the oil industry, telecommunications, technology, banking, healthcare and medical research, and advertising have been rising industries since the early 2000s. Filming has also been a prevalent industry in the metropolitan area. The largest companies operating within the metropolitan area are Amazon, Calumet Specialty Products Partners, SWEPCO, AT&T Mobility and Cricket Wireless, Louisiana State University, JPMorgan Chase, Regions Financial Corporation, Comcast, and Walmart. AT&T, Chase, and Regions have regional offices within Shreveport's downtown area. The Tyler, Texas-based Brookshire Grocery Company operates numerous Super 1 Foods and Brookshire's supermarkets in the area. From 2013-2014, Greater Shreveport had a gross metropolitan product of nearly $23.6 billion and negative growth rate of 5.4 percent. Its gross metropolitan product had been declining since 2011 to a low of $19 billion in 2016. In 2018, its gross metropolitan product rebounded to $23.7 billion. Following statewide economic recovery trends, the Shreveport–Bossier City metropolitan area was expected to gain at least 5,000 jobs by the third quarter of 2021. Media The principal cities of Shreveport and Bossier City have their own newspapers, The Shreveport Times and Bossier Press-Tribune, respectively. Other major publications in the metropolitan area include The Barksdale Warrior, The Shreveport Sun,