WiseYoda, it's all about the Mitchell Group.
Quick summary:
1.) Prior Zion CEO, Dustin Guinn, and current Zion CEO, Ron Dunn both worked at Viking.
2.) Mitchell Group owned Viking while both were there and then sold it.
3.) Mitchell Group owns Production Solutions.
4.) Mitchell Group is well known in the industry for establishing successful oil fields.
Feel free to look into it :-)
Where the Michell Group is, there's oil !!