The Roman-Secuieni gas field is a natural gas field in Secuieni, Neamț County, Romania lying 10 km (6.2 mi) of Roman and 30 km (19 mi) from Bacău.
It began production in September 1995 and produces natural gas and condensates.
[4][5]: 448 [6]: 313 The Sarmatian sandstone reservoirs from that region are exclusively gas-bearing (more than 98% methane), the most significant fields being those at Roman-Secuieni, Valea Seacă, Bacău, and Mărgineni.
These gas deposits are hosted in combination traps, with a marked lithological character due to frequent vertical and lateral facies variations.
[5]: 448 At Roman-Secuieni, the gas accumulates in detrital, lens-shaped bodies, grouped into 12 complexes; the deposit is divided into tectonic blocks by sub-vertical faults.