"'SPUDCO' CHRONOLOGY"(PDF). Prairie Policy Centre. September 11, 2009. Archived(PDF) from the original on December 25, 2015. Retrieved December 24, 2015.
"'SPUDCO' CHRONOLOGY"(PDF). Prairie Policy Centre. September 11, 2009. Archived(PDF) from the original on December 25, 2015. Retrieved December 24, 2015.