It is no secret that stock investing is highly unpredictable in today’s market. That’s why investment strategies increasingly are turning to high-yield dividend stocks hoping to add some reliable returns. Dividend stocks providing a healthy yield per share can reward equity investors handsomely. As long as they know which dividend stocks to pick, that is!

To help add some security to your dividend investments, take a look at these dividend stocks with big yields and big annual paydays.

Each of these dividend stocks offers a +4% yield and more than $3 per share annual returns.

Market Cap: $11.01 billion
Annual Dividend Payout: $3.90 per share
Current Dividend Yield: 4.88%
* As of market close 8/5/2010

As the name implies, Banco de Chile (NYSE: BCH)
provides personal and business banking products and services in Chile, and in limited capacity to the United States. As of the beginning of this year, the company operated about 400 branches, a network of nearly 1,600 ATMs and 415 “self-consultation” terminals. Dividends have been paid since 2002 — though unlike many other stocks, Banco de Chile offers its payouts only once a year in a single annual sum instead of quarterly.

Market Cap: $26.91 billion
Annual Dividend Payout: $3.48
Current Dividend Yield: 5.03%
* As of market close 8/5/2010

Canadian Imperial Bank of Commerce (NYSE: CM) provides a range of financial products and services to individual, small business, commercial, corporate and institutional customers in Canada and internationally. CM has been handing out dividends to its shareholders since 1890. As if that weren’t incentive enough, it should be noted that dividends have been handsomely increased on a regular basis for the past decade.

Market Cap: $11.50 billion
Annual Dividend Payout: $4.62
Current Dividend Yield: 6.42%
* As of market close 8/5/2010

CPFL Energia S.A. (NYSE: CPL) engages in the generation, distribution and sale of electricity in Brazil. By the end of 2009, CPL had distributed electricity to approximately 6.6 million residential, industrial and commercial customers. Since 2005, annual dividends per share have never been less than $3. Investors looking for consistent paydays may want to look at this young company to add to a dividend stock portfolio.

Market Cap: $9.81 billion
Annual Dividend Payout: $3.58
Current Dividend Yield: 6.97%
* As of market close 8/5/2010

Energy Transfer Partners (NYSE: ETP) is a publicly traded limited partnership engaged in two principal businesses: the processing and transportation of natural gas and the retail distribution of propane. This stock looks like a great buy for investors who are looking to make some quick cash on a company on the rise in a reliable business with consistent revenue. With impressive annual dividends paid out since 1996, ETP may be worth a serious look.

Market Cap: $21.30 billion
Annual Dividend Payout: $4.39
Current Dividend Yield: 6.35%
* As of market close 8/5/2010

Kinder Morgan Energy Partners, L.P. (NYSE: KMP) is a limited master partnership formed in August 1992 and is one of the largest publicly traded pipeline master limited partnerships in the U.S. in terms of market capitalization. Having a +6% dividend yield tends to look even better with a company like KMP, who enjoyed strong market growth over the past year. The icing on the cake is Wall Street estimates predicting a continuation of this prosperity into the next year.

Market Cap: $11.51 billion
Annual Dividend Payout: $4.00
Current Dividend Yield: 5.27%
* As of market close 8/5/2010

Lorillard Inc. (NYSE: LO) produces and markets cigarettes primarily in the U.S. The Greensboro, N.C., based company has an annual production capacity of about 43 billion cigarettes or approximately 185 million cigarettes per day. Despite recent movements for a more health-conscious population in the country, LO has faired rather well if you look at the numbers. It has been rewarding shareholders with dividends since 2002 and increased payout per share each of the past three years, currently resting at a $4.00 annual dividend.

Market Cap: $7.18 billion
Annual Dividend Payout: $4.48
Current Dividend Yield: 6.36%
* As of market close 8/5/2010

ONEOK Partners, L.P. (NYSE: OKS) is a publicly traded partnership formed in 1993 that is a leading transporter of natural gas and natural gas liquids in the Midwest area to market centers in the U.S. This pipeline giant has performed well above the broader markets since June, and its shares are up more than 16% in that time. The company has paid dividends for the past 16 years, and its dividend rate has increased steadily over the past four years. These figures make OKS an enticing mid-cap energy stock for dividend investors.

Market Cap: $8.70 billion
Annual Dividend Payout: $3.77
Current Dividend Yield: 5.90%
* As of market close 8/5/2010

Plains All American Pipeline, L.P. (NYSE: PAA) engages in the transportation, storage, terminalling and marketing of crude oil, refined products and liquefied petroleum gas and other natural gas-related petroleum products in the United States and Canada. Like the other energy companies already mentioned, Plains All American is performing well in the market over the past six months. PAA likes to take care of its loyal investors with quarterly dividends dating back to 1999 and currently paying out at an annual rate of $3.69 per share.

Market Cap: $16.73 billion
Annual Dividend Payout: $3.60
Current Dividend Yield: 6.27%
* As of market close 8/5/2010

Reynolds American Inc. (NYSE: RAI) is the second-largest U.S. cigarette manufacturer, and its leading products are its Camel, Kool, Pall Mall, Doral and Winston brand cigarettes. RAI stock has risen 30% from this time last year, and its dividends have followed an upward trend as well. Reynolds is not only in the business of making smokers happy — it also has shareholders coming back for more with its regular dividend increases over the past few years with a current dividend yield of +6%.

Market Cap: $64.39 billion
Annual Dividend Payout: $5.48
Current Dividend Yield: 5.04%
* As of market close 8/5/2010

Westpac Banking Corporation ADR (NYSE: WBK) provides a range of banking and financial products and services to individuals and corporate customers primarily in Australia and New Zealand. WBK was founded as Australia’s first bank in 1817, and it has been paying dividends ever since. And if nearly 200 years of offering dividends to shareholders isn’t impressive enough, its biannual dividend rate has added up to more than $5 per share annually for two of the past three years — a number it is projected to top again in 2010.