When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") above 20x, you may consider ConocoPhillips (NYSE:COP) as an attractive investment with its 14.1x P/E ratio. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's limited.

ConocoPhillips hasn't been tracking well recently as its declining earnings compare poorly to other companies, which have seen some growth on average. The P/E is probably low because investors think this poor earnings performance isn't going to get any better. If this is the case, then existing shareholders will probably struggle to get excited about the future direction of the share price.

Keen to find out how analysts think ConocoPhillips' future stacks up against the industry? In that case, our free report is a great place to start.

Is There Any Growth For ConocoPhillips?

In order to justify its P/E ratio, ConocoPhillips would need to produce sluggish growth that's trailing the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 8.0%. Still, the latest three year period has seen an excellent 107% overall rise in EPS, in spite of its unsatisfying short-term performance. So we can start by confirming that the company has generally done a very good job of growing earnings over that time, even though it had some hiccups along the way.

Shifting to the future, estimates from the analysts covering the company suggest earnings should grow by 1.6% each year over the next three years. With the market predicted to deliver 11% growth each year, the company is positioned for a weaker earnings result.

In light of this, it's understandable that ConocoPhillips' P/E sits below the majority of other companies. It seems most investors are expecting to see limited future growth and are only willing to pay a reduced amount for the stock.

The Bottom Line On ConocoPhillips' P/E

While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

As we suspected, our examination of ConocoPhillips' analyst forecasts revealed that its inferior earnings outlook is contributing to its low P/E. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

There are also other vital risk factors to consider before investing and we've discovered 2 warning signs for ConocoPhillips that you should be aware of.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on a low P/E.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.