martin midstream partners l.p. is a publicly traded limited partnership with a diverse set of operations focused primarily in the united states gulf coast region. our four primary business lines include: •terminalling, storage and packaging services for petroleum products and by-products •natural gas services, including liquids transportation and distribution services and natural gas storage •sulfur and sulfur-based products processing, manufacturing, marketing and distribution •marine transportation services for petroleum products and by-products the petroleum products and by-products we collect, transport, store and distribute are produced primarily by the independent oil and gas companies who often turn to third parties, such as us, for the transportation and disposition of these products. in addition to these major and independent oil and gas companies, our primary customers include independent refiners, large chemical companies, fertilizer manufacturers and other wholesale purchas