The Oil-Field-Service Industry, According to Three Key Ratios: Halliburton Company (HAL), Schlumberger Limited. (SLB)

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In the dawn of a new age of in the energy and oil industries, while North American oil production has risen by 37% and natural-gas by 19%, where is the money for investors?

Obviously many investors think differently here, and there is no one straightforward answer, but one group of companies that won’t necessarily come up in your everyday conversation may help savvy investors decide where to put their money in this “new age.”


I’m talking about the three largest oil-field-service firms — Schlumberger Limited. (NYSE:SLB), Baker Hughes Incorporated (NYSE:BHI), and Halliburton Company (NYSE:HAL). Combined, the three companies have invested more than $2 billion in research and development for the future, but I’m going to use a couple of metrics and ratios to tell you which one I think is worth having in your portfolio.

First, let’s look at how much they each have invested in research and development over the past five years:

Source: Wall Street Journal

With such a large sum of cash being invested, there is so much promise for the industry. Let’s look at which firm is right for your portfolio:

Asset Utilization

Measuring a company’s asset utilization is one of my favorite metrics to use, and it is great way to measure the efficiency of a company. In determining which of these three companies may belong in your portfolio, there are obviously countless factors, and efficiency is one of many things to take into account. However, for the sake of analyzing the companies broadly, asset utilization is one of the ways I will be using.

Asset utilization calculates a company’s total revenue earned for each dollar of assets that the company owns. For example, a ratio of 70% means that the company earned $.70 for every dollar of assets that it holds. A higher percentage tends to indicate a higher efficiency with this ratio.

While it is not always pinpoint-accurate, the ratio does usually give us a good indication of how each company is in terms of efficiency. So, given that, let’s take a look at the graph:

As you can see, Halliburton Company (NYSE:HAL) is incredibly efficient according to this metric, with the other two companies close enough to each other to count the difference as nearly negligible. This means that Halliburton is a safe bet in terms of efficiency, which can be extremely important when picking stocks for the long run. Let’s look at our next ratio:

KZ Index

To me, this ratio is incredibly important for specific industries, and not as important for others. Obviously, I believe it is very important to the oil industry, and here is why: the KZ index measures how a company might fare should conditions “tighten” financially. More specifically, the KZ index, or Kaplan-Zingales index, measures, relatively, a company’s reliance on external financing to determine which companies may be more likely than others to experience difficulty financing ongoing operations should conditions worsen. In the oil industry in which prices and technologies are constantly changing, this is incredibly important.

The calculation of the ratio is incredibly long and complicated, so I left it to the computers to do it for me, but if you are interested in knowing the specifics behind calculating it, you can look here.

Let’s look at the chart:

For this ratio, a lower score represents a lesser probability of financial difficulty during tightened economic conditions.

Because all KZ scores are relative, a score of about -1 (about where Halliburton Company (NYSE:HAL) and Baker Hughes sit) is pretty good—in fact, it’s better than about two-thirds of companies out there. However, a score of about -4, or where Schlumberger Limited. (NYSE:SLB) is, is considered excellent, and is better than more than four-fifths of companies.

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