When House Budget Committee Chairman Paul Ryan unveiled the GOP blueprint for cutting government spending, he asked Americans to make sacrifices on everything from Medicare to education, while preserving lucrative tax subsidies for the booming oil, mining and energy industries.

It turns out a constituency within his own personal investments stood to benefit from those tax breaks, Newsweek and The Daily Beast have learned.

The financial disclosure report Ryan filed with Congress last month and made public this week shows he and his wife, Janna, own stakes in four family companies that lease land in Texas and Oklahoma to the very energy companies that benefit from the tax subsidies in Ryan’s budget plan.

Ryan’s father-in-law, Daniel Little, who runs the companies, told Newsweek and The Daily Beast that the family companies are currently leasing the land for mining and drilling to energy giants such as Chesapeake Energy, Devon, and XTO Energy, a recently acquired subsidiary of ExxonMobil.

Some of these firms would be eligible for portions of the $45 billion in energy tax breaks and subsidies over 10 years protected in the Wisconsin lawmaker’s proposed budget. ‘Those [energy developing companies] benefit a lot from these subsidies,