ONE-Dyas spudded exploration well Maasmond-1 on 27 June 2019 using the âDeutag T46â L/R. The top-hole location is onshore in the Rotterdam Europoort area (covered by NAMâs Botlek III licence) but the well is deviating offshore to the Charly-North prospect in the Q16b and Q16c-deep licence which is below top Triassic. Operations were completed on the 22 September 2019 and the well was reported to be gas bearing. On 27 September 2019 further information had not been released.  ONE-Dyas produces oil from the Q16-Maas field which straddles licences Botlek-Maas, T1, Q16c-diep and P18d. Q16-Maas was discovered in August 2011 by exploration well Maasgeul-3ST1 which also deviated from the same onshore location as Maasmond-1. First gas was achieved in April 2014. The field contains approximately 29 Bcfg in a Triassic Bunter Sandstone reservoir at a depth of around 2,500 m. Due to the high condensate:gas ratio an LNG stripping facility has been installed at the gas treatment plant at the wellsite. The wellstream is split into one gas and three liquids (condensate, propane and butane) streams. The produced gas is exported directly into the GTS network. A new development sidetrack (Maasgeul-3ST3) was drilled in 2018.  Interest in Q16b and Q16c-deep licence is divided between ONE-Dyas BV (49% + operator), Energie Beheer Nederland BV (40%) and TAQA Offshore BV (11%).
Maasmond 01 (MSM-01) nfw. (ONE-Dyas Op 49%, TAQA Offshore 11%, EBN 40%) in Botlek III block had reportedly encountered gas with operations likely to conclude shortly.