* "Wholesale Petroleum Buyers, Sellers - Beware" <ref>[http://www.lockelord.com/files/News/ccf74331-ec90-4fb3-b7ff-b403f4863649/Presentation/NewsAttachment/fa86d44e-ccb9-44e7-87db-b8c9b7fa534a/2009-12_Houston_WholesalePetroleum_VanSlyke.pdf Co-author,2009]</ref> | * "Wholesale Petroleum Buyers, Sellers - Beware" <ref>[http://www.lockelord.com/files/News/ccf74331-ec90-4fb3-b7ff-b403f4863649/Presentation/NewsAttachment/fa86d44e-ccb9-44e7-87db-b8c9b7fa534a/2009-12_Houston_WholesalePetroleum_VanSlyke.pdf Co-author,2009]</ref> |