With the drilling technology available now I would not be surprised if wells could be drilled from the Texas side into the New Mexico deposits. Just like a crazy leftard governor to destroy her state on the altar of the global climate change religion.
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Anyone KNOWLEDGEABLE about THE LEGALITIES OF THIS?
Legality may be less important than practicality. The longest reach you might expect with directional/horizontal drilling is maybe 5-6 miles (seems like I remember a 28,000 foot well offshore California?). And that's only if the target reservoir can produce enough oil or gas, fast enough, to pay the bills (drilling a deviated hole is definitely expensive). At best, you would be looking at development limited to a skinny little strip along the State border.
Kuwait and Iraq fought over the shared Rumaila oil field in 1989, partly based on use of advanced drilling techniques to cross under the border.
You can only produce oil from your own lease. If you directionally drill across state lines into a lease you own you still have to pay the other state royalties, and probably also royalties to the state where the well is located. If you drill into someone else’s lease you have to pay them for the production and pay the state where the lease is located royalties. Then one or the other state will make you P&A the well at least to the lease line if not all of it.