de minimis Safe Harbor - partial ownership

I own a joint interest in some properties (Schedule C).  A $10,000 piece of equipment is purchased (above the de minimis amount). My interest is 20%, so my billing statement is $2,000 of Equipment (under the de minimis amount). Am I allowed to expense the equipment or is it only depreciable? 

 

In other words, can a joint interest in equipment take an asset from depreciation to expense even if the gross purchase price is above the de minimis amount?