Calendar of PERN S.A.
| 1959 | Establishment of Crude Oil and Gas Exploration Company under construction. |
| 1960 | Commencement of construction of the first branch of the Polish section of the “Przyjaźń” pipeline. |
| 1963 | Commencement of operation of the first branch of the Polish section of the “Przyjaźń” pipeline. |
| 1964 | Change of the company’s name to Przedsiębiorstwo Eksploatacji Rurociągu Naftowego “Przyjaźń”. |
| 1968 | Commencement of operation of the final product pipelines Płock – Koluszki. |
| 1970 | Commencement of operation of the final product pipelines Płock – Mościska. |
| Commencement of construction of the second branch of the “Przyjaźń” pipeline. | |
| 1972 | Commencement of operation of the second branch of the “Przyjaźń” pipeline in the Eastern Section. |
| 1973 | Commencement of operation of the second branch of the “Przyjaźń” pipeline on the Western Section. |
| Commencement of the construction of the Pomeranian Pipeline. | |
| 1975 | Commencement of operation of the Pomeranian Pipeline. |
| Commencement of operation of the final product pipelines Mościska – Emilianów. | |
| 1983 | Commencement of operation of the final product pipelines Płock – Nowa Wieś Wielka. |
| Change of the company’s name to Przedsiębiorstwo Eksploatacji Rurociągów Naftowych “Przyjaźń”. | |
| 1992 | Commencement of operation of the final product pipelines Koluszki – Boronów. |
| 1993 | Commencement of operation of the final product pipelines Nowa Wieś Wielka – Rejowiec. |
| 1999 | Transforming the company into a joint-stock company of the State Treasury. |
| 2002 | Commencement of the construction of the third branch of the “Przyjaźń” pipeline in the Eastern Section. |
| Commencement of the construction of four new crude oil tanks, each with a capacity of 100 000 m3 | |
| Commencement of the construction of optical fibre networks along all sections of the pipelines operated by the company. | |
| 2005 | Acquisition of a controlling stake in Naftoport Sp. z o.o. |
| 2009 | Completion of the first stage of the construction of the third branch of the “Przyjaźń” pipeline. |
| Incorporation of Operator Logistyczny Paliw Płynnych to Grupa Kapitałowa PERN “Przyjaźń”. | |
| Commencement of the investment project for the construction of two tanks with a capacity of 100 000 m3 in Adamowo. | |
| 2010 | Completion of the second stage of the construction of the third branch of the “Przyjaźń” pipeline. |
| Acquisition of “SIARKOPOL” Gdańsk S.A. | |
| 2011 | Putting into operation of two tanks with a capacity of 100 000 m3 each for crude oil in Adamów. |
| Commencement of the investment project for the construction of two tanks with a capacity of 100 000 m3 in Płock. | |
| 2013 | Contract signed with the General Contractor of Gdańsk Crude Oil Terminal with IDS-BUD S.A. |
| Putting into operation of two tanks with a capacity of 100 000 m3 each for crude oil in Miszewko Strzałkowskie near Płock. | |
| 2014 | Laying the cornerstone for the construction of Gdańsk Crude Oil Terminal. |
| 1.06.2016 | Przedsiębiorstwo Eksploatacji Rurociągów Naftowych “Przyjaźń” Spółka Akcyjna changes its name to PERN Spółka Akcyjna The abbreviated name of the company from: PERN “Przyjaźń” S.A. to PERN S.A. |
| 3.01.2018 | Merging of PERN S.A. and OLPP Sp. z o.o. |