This post is one in a series in which more than 60 newsletter advisors share their Top Stock Picks for 2011. This special report is courtesy of TheStockAdvisors.com.

"Canadian Oil Sands Trust (COSWF) has clearly lagged broad-based and energy-sector benchmarks alike over the trailing 12 months," says David Dittman.

The contributing editor to Canadian Edge explains, "A series of unplanned turnarounds at the Syncrude operation, of which Canadian Oil Sands owns 36.7 percent, have analysts questioning whether rising costs will ever allow Canadian Oil Sands to really benefit from elevated oil prices.

After seven months of one of the strongest rallies in history, the stock market is showing signs of faltering. From here on out through the rest of 2009, I believe the advance will shift gears, and instead of recording new highs every month, the trend will tend to flatten.

And as we head into the heart of the fourth quarter, I wouldn't bet on the market making many more new highs this year.

The Canadian Oil Sands Trust (COSWF) is an open-ended investment trust that generates income from its 36.74% interest in the Syncrude Canada Ltd. joint venture, which is the world's largest producer of crude oil from oil sands and the largest single-source producer in Canada.

After falling from more than $50 in July 2008 to less than $15 in January 2009, this trust formed a base and then rallied from February to May before settling down for its next consolidation, a cup-and-handle formation.

Having just completed the Top Picks report for 2007 – the 24th consecutive year I have surveyed the newsletter advisors for their favorite stocks -- I thought I would share some observations to help readers best use the information in this feature.

And over the next few days, I will post articles to share observations on the stocks and sectors chosen, discuss the participating advisors, and highlight some of last year's top performers to help guide you in assessing this year's report.

I'll begin today by noting some caveats that should be kept in mind by those who are considering buying stocks from among the list of Top Picks. The advisors who have participated in this year's project were asked to submit a favorite speculative and/or conservative stock for the year ahead.

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

Canadian Oil Sands Trust (TSX: COS.UN) is the top conservative buy for 2007 from international investing expert Vivian Lewis. The editor of Global Investing notes, "Canada recently slapped surprise taxes on income trusts. Nevertheless, we think oil sands will also be a good idea even if not exempt from taxes on dividends.

"The main reason is that the dividends are pretty meager. COS pays 2.7%. This is not going to cause a sell-off in the share, even if the dividend is cut in 2011. The trust, however, dropped 10% in what I consider a mistaken reaction to the tax news.

"Meanwhile, Canadian Oil Sands Trust saw third quarter volumes and sales prices rise, which partly offset higher royalties paid, while net fell 27%. The dividend is 30 cents per unit. The stock is up 41%, including dividends, over the past year.

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

Canadian Oil Sands Trust (TSX: COS) is the favorite speculative idea from from Gordon Pape, editor of Internet Wealth Builder.

The advisor notes, "It may seem strange to select a company that owns more than 36% of the Syncrude Oil Sands Project in Alberta as a speculative pick but that's where we are with Canadian energy trusts as a result of the government's October 31 announcement that they would be subject to a 31.5% tax starting in 2011.

"Most of the trusts have seen their market prices clobbered as a result, but not this one. It's actually trading above where it closed on the afternoon prior to the announcement. There are three reasons for this. First, the price of oil has risen recently. Second, there is general expectation that the trust will raise its distributions next year (the current rate is C$0.30 a quarter).

"Finally, there is the asset value. Whatever happens to COS in terms of its corporate structure in the future, it will remain one of the preeminent players in the Oil Sands. Unless you think America is going to stop running on oil sometime soon, this is a stock you want to own for both income and growth."

To see Gordon's top conservative investment idea for 2007, click here.