It's not easy to compete with what can be sucked out of the ground for free, the expenses being pipe and fees, leases, taxes, graft, and the US Marines.
Don't forget exploration, tooling, drilling, and transport costs. It takes more infrastructure to pull crude out of the ground overseas than to produce it from TDP domestically. The seed energy consumption is what's keeping the cost higher, ATM. LP or NG are probably more cost-effective than burning their product for the process.
Why not just harness waste heat from the electrical generation process as part of an integrated Electricity/TDP oil plant? Most of our electrical generation comes from processes that produce waste-heat.