ARLINGTON, Texas — The Pinnacle Corp. said that it recently went to Austin, Texas, to carry the legislative priorities of Texas Petroleum Marketers & Convenience Store Association (TPCA) to members of the Texas Legislature. Pinnacle has been dedicated to active involvement with TPCA, an organization formed to serve the common regulatory, legislative and educational needs of businesses engaged in the distribution of wholesale fuel, retail fuel and lube oils, for years.