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Looking back is useful to understand what you have done
and what you can improve.

PRB has a long history and there have been countless cases where we were able to be helpful to many customers. Here are just a few of these "stories", not because the others are less important (for us, they all are), but because they have special characteristics and are perhaps a little more interesting to the reader owing to the kind of service we provided. Many are set in the distant past and show our extensive experience and expertise.