Most people probably know that the past few years haven't been kind to natural gas producers, who saw prices for their product plunge to a decade low last spring. In response, most decided to curtail gas drilling as much as possible in favor of drilling for oil.
This tendency of energy producers to avoid the out-of-favor commodity is perhaps most evident in the U.S. rig count data. Over the past year and a half, the number of rigs drilling for natural gas has plunged by more than half. Yet U.S. natural gas production continues to shatter records.
Last year, total marketed production came in at 25.3 trillion cubic feet, the highest ever level of output. And production continues at astonishing levels of just under 65 billion cubic feet per day. What explains this paradox?
The nature of oil and gas wells
There are at least two important factors to consider here. The first has to do with the technicalities of drilling for hydrocarbons.
Despite industry jargon characterizing individual wells as "oil wells" or "gas wells," most wells actually produce a mixture of crude oil, natural gas liquids, and dry gas. Some plays, such as the Marcellus or the Haynesville, produce much more natural gas and gas liquids than oil, while others, such as the Bakken and the Eagle Ford, crank out much higher proportions of crude oil.
Many drilling rigs have been migrated from plays that produce mostly dry natural gas to those that produce greater proportions of oil and gas liquids. Still, these liquids-rich plays give off substantial quantities of so-called "free" gas as an associated byproduct of liquids drilling. In some plays, much of it is collected and marketed, while in others, like the Bakken, much of it is flared off and wasted.
Drilling efficiency gains
The second, and more important, reason why gas production has continued at record levels despite the plunge in gas-directed rigs has to do with the massive efficiency gains that have become a common feature of the industry.
If you sift through energy producers' quarterly conference calls, you'll notice just how staggeringly frequent some of these gains are, occurring not just year over year but each quarter and, in some cases, each month.
Not only are operators able to drill wells much faster than before and, in some cases, cheaper than before, many have been able to increase production while employing the same or fewer number of rigs. For instance, Bakken operator Kodiak Oil & Gas (NYSE:KOG) reported a drastic reduction in the number of spud-to-rig release days, which were down to the low 20s in the fourth quarter, as compared with nearly 35 in the year-earlier period.
And in the Eagle Ford shale of Texas, quicker movement between wells helped Chesapeake Energy (NYSE:CHK) slash the number of days it took to get from one well to another. In the fourth quarter, the company said it averaged just 18 days to move rigs between wells in the play, down from 26 days just two years earlier.
Others have achieved tremendous success through pad drilling, which allows operators to efficiently drill multiple wells from a single pad. For instance, Whiting Petroleum (NYSE:WLL) said pad drilling allowed it to drill the same number of wells with fewer rigs, which helped bring down drilling expenses substantially.
As you can see, the nature of oil and gas wells means that large quantities of gas are extracted as a byproduct of drilling for oil, while drastic improvements in drilling efficiency have allowed operators to produce more gas with the same or fewer number of rigs.
Another less important reason that helps explain why natural gas production has remained at record levels despite plunging rig counts has to do with the legal technicalities of oil and gas land leases. Leasehold owners are often required to maintain a given level of activity in gas plays to avoid losing their lease, which means that many end up drilling for gas despite incurring sizable losses on their production.
Fool contributor Arjun Sreekumar has no position in any stocks mentioned. The Motley Fool has options on Chesapeake Energy. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.