Many of the pipelines are as old as twenty to twenty-five years.Shell admits that "most of the facilities were constructed between the 1960s and early 1980s to the then prevailing standards.. 
Àwọn ìwádìí mi fihàn pé àwọn àwọn Kristẹni ni Guinea-Bissau May tó láàrín ènìyàn márùn-ún nínú ọgọ́rùn-ún sí ènìyàn mẹ́tàlá nínú ọgọ́rùn-ún àwọn ènìyàn orílẹ̀ èdè náà.. 