I have not seen any "official" announcement, but Randy Babcock of the D&SNG RR has confirmed that the D&SNG RR will be leasing the SP #18 from the folks at Lone Pine, Laws and Inyo County CA. The 'oil-fired' #18 will mostly be used to train engine and shop crews on an oil-fired locomotive, in preparation for D&S finishing the rebuild of one of their [originally] coal fired locomotive into an oil fired locomotive. There will be an opportunity to ride some trains behind #18 at D&S.
This is partly driven by the perceived lesser forest fire potential with an oil-fired locomotive.
As this thread notes, the "official" press release is not posted yet, but more details are here:
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