What happened

Shares of natural gas transportation-fuels leader Clean Energy Fuels (NASDAQ:CLNE) fell nearly 11% today after the company reported second-quarter 2017 earnings. The good news is that the volume of fuel sold during the period increased from the year-ago quarter. The bad news is, well, just about everything else.

Revenue from renewable fuel sales, federal tax credits, station construction, and compression systems fell compared to the year-ago period. That led to a year-over-year drop in total revenue of 25%. Although total revenue for the first half of 2017 is still above that from the first half of 2016, investors are worried that the recent asset sale of Redeem production facilities to BP will result in this being more of the norm going forward.

As of 11:44 a.m. EDT, the stock had settled to an 8% loss.

Compressors and pipelines gathering renewable biomethane from a landfill.

Image source: Getty Images.

So what

Here are selected financial highlights for the second quarter of 2017 and the year-ago period:

Metric

Q2 2017

Q2 2016

Percentage Change

Gallons sold

88.4 million

82.9 million

6.6%

Volume-related revenue

$63.3 million

$71.6 million

(11.6%)

Compressor revenue

$5.2 million

$8.8 million

(41%)

Station construction

$12.3 million

$21.1 million

(41.7%)

Federal excise tax for renewable fuels (VETC)

$0

$6.5 million

N/A

Other revenue

$0.2 million

$0

N/A

Total revenue

$81 million

$108 million

(25%)

Operating expenses

$95 million

$108.9 million

(13%)

EPS

($0.12)

$0.01

N/A

Source: Clean Energy Fuels.

Compressor sales and station construction were down due to lack of demand. Meanwhile, the expiration of the VETC on the last day of 2016 means the company's renewable fuel sales are no longer supported by federal tax credits. It could be retroactively reinstated at a later date, and Clean Energy Fuels still realizes benefits from other federal and state tax credits, but the company will realize less revenue from all tax credits regardless moving forward. Why?

The sale of its Redeem production facilities to BP has permanently decreased the amount of money it makes from the sale of its renewable fuels. That is the new normal -- and something investors (including myself) may have overlooked previously.

Now what

Clean Energy Fuels has a new strategy that focuses on building the core parts of its business while maintaining lower operating expenses. However, a 25% drop in total revenue more than offset the 13% reduction in operating expenses between the second quarter of 2017 and the same period last year. Many of the driving factors behind weakness in the most recent quarter are out of the company's control, but it appears that the stock's turnaround may be more difficult than Mr. Market may have realized.

Maxx Chatsko has no position in any stocks mentioned. The Motley Fool owns shares of and recommends Clean Energy Fuels. The Motley Fool has a disclosure policy.