Six engines were built by Hanomag in 1903 and 1904 with numbers 151–154, 160 and 161. They differed in several technical details from their Prussian counterparts, but did not have Lentz valve gear which, later, became common throughout Oldenburg.
The Deutsche Reichsbahn took over all six locomotives and grouped them into DRG Class 13.18, allocating them the numbers 13 1801 to 13 1806. They were retired by 1927.