Imperial Oil Oil discovered the Leduc Woodbend Devonian oil reef in 1947, marking the beginning of the contemporary period in Canadian oil and gas development. Drilling began on the landmark discovery well Leduc No. 1 on November 20, 1946. In 1989, Imperial Oil acquired Texaco's Canadian operations. From the 1934-35 season through the 1975-76 season, Imperial Oil was a sponsor of the Canadian Broadcasting Corp. program "Hockey Night in Canada" for both radio and television broadcasts. In February 2013, Richard Kruger, President of ExxonMobil Production Co. and a Vice President of Exxon Mobil Corp., was appointed to be Chief Executive of Imperial
Beta barrel Beta barrel A beta barrel is a beta-sheet that twists and coils to form a closed structure in which the first strand is bonded to the last strand (hydrogen bond). Beta-strands in many beta-barrels are arranged in an antiparallel fashion. Beta barrel structures are named for resemblance to the barrels used to contain liquids. Most of them are water-soluble proteins and frequently bind hydrophobic ligands in the barrel center, as in lipocalins. Others span cell membranes and commonly found in porins. Porin-like barrel structures are encoded by as many as 2–3% of the genes in Gram-negative bacteria. In many cases,