<http://schema.org/url>
<http://extension.psu.edu/natural-resources/natural-gas/news/2010/07/dep-proposing-new-regulations-for-oil-and-gas-wells>
<http://extension.psu.edu/natural-resources/natural-gas/news/2010/07/dep-proposing-new-regulations-for-oil-and-gas-wells>