It was dependent and focused on oil and gas fracking waste water cleanup, and recycling a good market until the oil/gas price colapses. And they lost a lawsuit over patent infringement with Halliburton about a year ago. Last I heard they were targeting other market applications. No news of any sales in almost a year I think. The meat operation was a subsidiary that was buying, owning and leasing the rigs, now mostly owned by the founder of Fidelity Mutual funds who was funding the subsidiary buying the rigs, Johnston.... I never went long this stock, but the tech was 98% of my old patents with a few new twists, so I stalk it....
The quiet steal rally of late has caught my eye too. I have a chart on my board, live 24/7 in my page intro area