- August 1993 - Signing of the G2G agreement
- September 1993 - EUROPOL GAZ S.A. is established
- December 1993 - EUROPOL GAZ S.A. is entered into the register of the Area Court of the Capital City of Warsaw
- November 1996 - Commissioning of the first length of the pipeline’s line part, length 102 km
- 1999 - Commissioning of the remaining line part of the pipeline, the Kondratki Compressor Station as well as the communication and SCADA system
- 2000 - Commissioning of the Włocławek Compressor Station
- 2005 – 2006 - Commissioning of the Zambrów, Ciechanów and Szamotuły Compressor Stations
- Since 2010 - OGP GAZ-SYSTEM S.A. is the operator of the Polish length of the Yamal gas pipeline
- 2010 - The agreement entrusting the operator’s duties along the Polish length of the Yamal pipeline to
OGP GAZ-SYSTEM S.A. The agreement remained in force until the end of 2019. - 2011 - Launch of the virtual reverse flow service from Germany to Poland
- 2014 - Ensuring possibilities of gas supplies to Poland by means of the physical reverse flow
- 2020 - Expiry of the transmission contract concluded in 1995 with OOO Gazprom Export
- 2022 - Expiry of the transmission contract concluded in 2004 with PGNiG
- 2023 - The agreement entrusting the operator’s duties along the Polish length of the Yamal pipeline to
OGP GAZ-SYSTEM S.A. The agreement will remain in force until 2068 - October 10, 2023 - Decision of the Minister of Economic Development and Technology on taking up 100% shares of EUROPOL GAZ S.A. owned by PAO Gazprom by EUROPOL GAZ S.A. („the Sanctions Act”)
- 2024 - Entry to KRS [the National court Register] confirming that the only shareholeder of the Company is ORLEN S.A.