The Successful Investor, in the November, 2016, issue, says hold Pengrowth Energy Corp., recently $2.25. The Investor said buy 19 times from August, 2005, to September, 2015, at prices ranging from $1.71 to $26. Assuming a $1,000 investment for each of the 19 buys, the $19,000 position is now worth $5,530. Pengrowth recently put out an updated reserve report on its Lindbergh oil sands property in Alberta. The property was found to hold proven reserves of 147.9 million barrels as of Sept. 30, a 43-per-cent increase over year-end 2015. If probable reserves are included, Lindbergh holds 319.1 million barrels, a 21.1-per-cent increase over the year-end 2015 estimate. Lindbergh produced 15,502 barrels a day in the quarter ended June 30, 2016, or more than one-quarter of Pengrowth's total production of 56,735 barrels a day. Pengrowth eventually plans to increase Lindbergh's production to 30,000 barrels a day. Hold.