The rear of my Pennsylvania property has a 600' long x ? wide right of way for a natural gas pipeline. The ROW was originated in 1913 and is vague (surprise) as to the width permitted. The gas company has maintained the area at a width of only 25', there are 60' tall trees right up to that point - so they have been growing awhile.
If they do improvements, do they have the right to hold me to the present day standard of 50'-75' wide or would they need to re-negotiate the ROW since they have only maintained it at 25'? I guess it is common in my area for a vague ROW from that time, which is to the gas companies benefit (then and now) I assume.
Second, due to the boom with drilling new wells - the neighbor opposite me is putting in a well. Does the gas exploration company have the right to use my portion of the ROW without my permission in order to pipe his well to the pipeline? I imagine they do since they are working with the gas company.
Thank you.

