NEW YORK ( TheStreet) -- The S&P 500 has declined by just under 10% in the last week, creating opportunities to buy excellent businesses for bargain prices. It may be helpful now to remember what legendary investor Warren Buffett once said: "Be greedy when others are fearful and fearful when others are greedy."

Now is the time to be greedy and load up on high-quality businesses. The 10 businesses below all have paid steady or increasing dividends for 25 or more years, and all of their stocks have declined more than the S&P 500 during the last week.



1. Deere

Deere (DE), the world's largest manufacturer of farming equipment, has paid steady or rising dividends for 27 consecutive years, proving over the last several decades that it can maintain or increase its dividend payments even through recessions.

The stock has declined over 15% in the last week. It was undervalued even before the selloff, largely because its earnings are highly cyclical. When crop prices fall, farmers tend to put off purchases of new equipment, hurting Deere's earnings, which are near lows not seen since 2011.

The stock has a price-to-earnings ratio of 12.4 and a 3% dividend yield. The world's wealthiest investor -- Warren Buffett -- bought into Deere this year, and the stock is trading at its lowest price of the last 12 months.

When Buffett gives a stock his seal of approval, long-term investors should take note. When you can buy the stock at a better price than Buffett himself, you are setting yourself up for potential high total returns.


2. Phillips 66

Phillips 66 (PSX) was created in 2012 when ConocoPhillips (COP) split its midstream and downstream operations from its upstream operations.

Since that time, Phillips 66 stock has soared to over $70 from $30. Still, the company is undervalued. The stock has declined 18.1% over the last week, and it has a P-E ratio of 9.09 and dividend yield of 3.1%.

The company doesn't rely on oil and gas prices as many other large-cap oil companies do. Phillips 66 makes over half of its earnings from its refining segment. Oil needs to be refined regardless of oil prices.

In addition, the company generates another 24% of earnings from its chemicals segment. Oil is one of the primary input costs for the chemical segment. When oil prices fall, chemical segment profits tend to rise.

Phillips 66 is a shareholder-friendly company. It has paid steady or increasing dividends since 1987 counting its history with ConocoPhillips. Phillips 66' management has committed to returning 40% of cash flows to shareholders in the form of share repurchases. The company has repurchased shares while its P-E ratio is depressed -- significantly boosting long-term shareholder value.

The company's earnings a share are expected to increase at a compounded rate of about 5% a year over the next several years. That growth combined with the dividend yield should give investors a total return of over 8% a year. Investors will also likely see gains from an increase in valuation.



3. Chevron

Oil giant Chevron (CVX) has paid increasing dividends for 27 consecutive years. It is one of only two companies that have 25-plus consecutive years of dividend increases. The other will be discussed later in this article. Click here to see a list of all 52 Dividend Aristocrats.

Shares of Chevron have declined 16% over the past week and have fallen over 45% during the past year.

Chevron has both upstream and downstream operations. When oil prices fall, upstream profits decline while downstream profits increase. In the company's most recent quarter, the upstream segment was unprofitable because of low oil prices. The downstream segment saw earnings increase, but that didn't fully compensate for the drastic reduction in profits from the upstream business.

The stock has a P-E of 10.8 and 6.1% dividend yield. Management has made dividend payments a priority.

The company has $12.5 billion in cash and liquid investments on its balance sheet, and is accelerating its divestment plan and reducing capital expenditures to conserve cash. The company pays out around $8 billion a year in dividends and can fully fund its dividend payments with just cash on hand for well over a year. But it won't need to, as cash flows from operations are still well in excess of the amount needed to fund the dividend.


4. Exxon Mobil

Exxon Mobil (XOM) is the other oil company that has increased dividends for at least 25 straight years. The company's stock price has declined about 31% over the last year, including a 11.8% drop during the last week.

With the drop in price, the stock has a dividend yield of 4.2%, which is the highest yield Exxon has offered in the last decade.There hasn't been a better time in the last decade to buy Exxon's stock than now.

The company has paid increasing dividends for 33 consecutive years. This is not Exxon's first bout with low oil prices or a potential recession. Every time over the last three decades, the company has increased its dividend through all of these scares.

During the last decade, earnings a share have grown at a compounded rate of 3.4% a year. The company hit its high EPS mark in 2011 during a period of high oil prices.

Oil prices fluctuate. They are low now, which results in lower earnings for Exxon. Few things are certain in finance, but one thing that never changes is fluctuations and reversion to the mean. Oil prices will rise again, and when they do, Exxon shareholders will see large gains from both an increase in the company's P-E ratio and EPS.

5. Aflac

Insurer Aflac (AFL) generates 75% of its revenue in Japan, with the remaining 25% coming from the U.S.

Aflac's reliance on Japan has caused investors to worry, resulting in a declining share price. Japan's economy is in trouble with a high debt level. The country has a declining population growth rate and is trying prop up its stagnating economy.

Aflac's stock is down 17.5% over the last week. What most investors are missing is that Aflac is an exceptionally high-quality insurer. Japan's economy may be in trouble, but Aflac will likely manage to grow despite that obstacle.

Over the last decade, Aflac's operating income has increased 8% a year. Aflac is unlikely to grow as fast over the next decade as it did over the previous decade, but it should still see growth of around 3% to 6% a year. The company is rewarding shareholders in a different way, however.

Aflac plans to repurchase $1.3 billion in common stock this year, which comes to 5.4% of its shares outstanding at current prices. The share repurchases will boost Aflac's EPS, and combined with the company's expected earnings growth, should give shareholders a return of 6% to 11.5% a year.

That doesn't include a dividend yield of 2.8%. All told, Aflac investors should see total returns of between 8.8% and 14.3% a year at current prices.

The stock trades at just 9.2 times trailing earnings, and appears to be deeply undervalued relative to its expected total return. Long-term investos in Aflac could see even higher compound gains if the company's P-E rises.

6. Wal-Mart

Wal-Mart (WMT) is the world's largest retailer, whose market capitalization of $206 billion dwarfs that of the country's second-largest discount retailer Costco (COST) (market cap $58 billion).

Take a look at the P-E ratios of Wal-Mart's closest competitors below:

  • Costco has a P-E ratio of 25.5
  • Target (TGT) has a P-E ratio of 15.
  • Dollar General (DG) has a P-E ratio of 20.4
  • Dollar Tree (DLTR) has a P-E ratio of 28.5

Wal-Mart's P-E is 13.2, even though it is the industry leader. Its stock appears to be significantly undervalued.

The stock has declined 9.1% over the past week and over 26.5% this year. The declines make now an historically excellent time to buy Wal-Mart's stock. Wal-Mart is one of Buffett's largest high-dividend stock holdings. The company is also a "Dividend Aristocrat" with over 40 consecutive years of dividend increases.

Wal-Mart has struggled recently, however. The company is retooling itself for future growth by raising employee wages and investing heavily in e-commerce. In the short run, that is slowing growth. In the long run, Wal-Mart shareholders should benefit from the company's renewed focus on motivating employees and better serving customers both online and in stores.


7. UnitedHealth Group

UnitedHealth Group (UNH) has been the the best investment of current S&P 500 stocks over the last 25 years, generating compound returns of 27.5% a year during that time. The company has also paid steady or increasing dividends for the last 25 years.

Investors seem to have forgotten how rewarding UnitedHealth has been. The company's stock has declined 12.3% in the last week.

It's true that United Health is not as undervalued as many of the other stocks in this list, but the stock's decline gives investors an opportunity to pick up shares at a cheaper price.

The stock has a P-E ratio of 17.7 and dividend yield of 1.8%. For comparison, the S&P 500's P-E is 18.8.

Earnings a share have grown at a compounded rate of 9.7% a year over the last 10 years. With health care spending continuing to grow rapidly in the U.S., the above average EPS growth should continue.

Expect UnitedHealth to generate EPS growth of between 8% and 11% a year over the next several years, in line with its more recent historical growth. The growth combined with the dividend yield should give investors total returns of between 9.8% and 12.8% a year.


8. Dover

Industrial-machine maker Dover (DOV) has paid increasing dividends for 59 consecutive years. The streak makes Dover a member of the exclusive "Dividend Kings," a group of 16 stocks that have paid increasing dividends for 50 or more consecutive years. Click here to see all 16 Dividend Kings.

A business must have a strong and durable competitive advantage to pay increasing dividends for more than half-a-century. Dover's competitive advantage comes from its extensive technical knowledge and patent portfolio in several machinery and industrial-goods segments.

Dover has shown solid growth over the last decade, with a compounded EPS growth rate of 9.5% a year. The stock has a dividend yield of 3%, and the relatively high dividend yield and solid growth make it likely that investors will see total returns of over 10% a year.

The stock, which has fallen about 12.5% over the past week, has a P-E ratio of 13.7. The stock's decline is likely the result of Dover's exposure to the oil and gas industry. About one-third of the company's earnings typically come from the manufacture of bearings, compressions and lift technology for the energy sector. When oil prices recover, so should Dover's earnings.

Dover may experience EPS declines during recessions and periods of low oil prices, but the company has proven it prioritizes its dividend. Dover's share-price decline over the last week shows that investors are heavily discounting the company's history of consistent dividend growth and focusing only on negative short-term events.



9. Abbott Laboratories

Abbot Laboratories (ABT) sells medical devices, diagnostic equipment, generic drugs and nutrition products.

The company's best-known brands to consumers include Similac, Ensure and Pedialyte. Abbott's diversified health care segments have resulted in consistent growth, and the company has paid increasing dividends for 43 consecutive years.

Abbott's share price has declined 14.9% in the last week on fears about a global recession as the company has invested in emerging markets.

Its generic pharmaceuticals segment now generates all of its sales from emerging and developing markets. Over the long run, the strategy should result in faster growth for Abbott, but emerging markets tend to be more prone to the effects of recessions. When the global economy suffers, Abbott's emerging-market sales will likely decline.

Fear of this scenario is what has caused the steep decline in Abbott's share price. But don't be scared by temporary price weakness. Abbott's long-term growth prospects are excellent.

The company is expecting constant-currency earnings-a-share growth of between 13% and 18% in 2015. Growth expectations may decline somewhat because of weakness in the global economy, but Abbott should benefit from the long-term trends of a growing population, growing wealth and greater demand for quality health care in emerging markets.

The P-E ratio of 27 is higher than the S&P 500's level.

Abbott has a dividend yield of 2.2%. The company's long history of paying rising dividends, growth prospects and dividend yield make it a good choice for dividend investors looking for long-term growth.


10. Helmerich & Payne

10. Helmerich & Payne (HP) leases its drilling rigs under long-term contracts to oil and gas companies, primarily in North America. It benefited from the boom in the North American oil industry as from 2005 through 2014, its earnings a share grew at a compounded rate of 22.8% a year.

Oil prices have declined over much of the past year, which has caused oil companies to cut back on drilling, reducing Helmerich & Payne's profits. The company saw that coming, however. Helmerich & Payne includes penalties in its contracts that provide one-time payments when customers terminate early.

All told, Helmerich & Payne's earnings a share are expected to decline to $3 this year from $6.46 last year.

The company pays $2.75 a share annually in dividends and has $7.26 a share in cash on hand. Helmerich & Payne could fund its dividend payments for nearly three years with just its cash on hand. It has paid steady or increasing dividends every year since 1987. Despite low oil prices, it seems unlikely the company will reduce its dividend any time soon.

Helmerich & Payne's stock price has declined over 50% in the last 12 months, which includes an 13% drop in the last week. The stock is deeply undervalued at current prices.

The company has a 5.4% dividend yield and a P-E ratio of 9.1. The stock market is offering investors a rare opportunity to buy a shareholder-friendly and industry-leading business for less than 10 times trailing earnings.

When oil prices recover, Helmerich & Payne will likely see both its EPS and its P-E ratio increase, which should result in big gains for shareholders.

This article is commentary by an independent contributor. At the time of publication, the author is long ABT, AFL, HP, WMT and XOM.