I'm not really worried about attacks.  People can do a hell of a lot of damage, not intentionally, but just because they're trying to steal scrap metal.  

I suspect most people don't even know where the oil and gas pipelines are.  (If they ever find out, perhaps oil "bunkering" will catch on here, too...)  But everyone knows where the train tracks are.

I also did not mean attacks, but stealing from the oil/diesel/gasoline that flows through the pipeline. It is not so difficult once you get access to the pipeline, and the chances you will get awaw with it are big. As we know fuel is likely to become very precious with time...

We had several such cases in Bulgaria even though there in not that much pipeline network. Not to mention about the electricity being stolen by people, mostly from the poor minorities - the amount is in the range of tens of millions kwth yearly. You would think it is dangareous and you would be right, but the thiefs get better and also better-equipped with time.

It is amazing what people do when energy is scarce or they can not afford it.

Yup.  If it comes to that, I'm not really expecting there to be any oil or gas in the pipelines.  It will be like it was after Hurricane Katrina.  A few hours or days of panic buying that sucks the system dry.  Then oil and gas distributed in tanker trucks, surrounded by a platoon of armed guards.
This from 6th CONCAWE pipeline seminar 2002,

"
Theft or attempted theft from pipelines has been a
consistent feature of operations, particulary in
Eastern Europe, over a number of years and a major
cause of incidents. A recent case in Italy unfortunately
led to the death of the perpetrator. One
presentation described the measures being taken in
Hungary to address this problem. Between 1992
and 1999, the Hungarian system was attacked more
than 100 times. Although not all of these attempts
were successful, the value of fuel lost was substantial.
Even more expensive was the cost of clearing
up the spilt oil. To counter this threat, a sophisticated
leak detection system has been installed. This
not only detects leaks, but also pin-points the position
of the leak which facilitates rapid intervention.
As a result, the number of attempted thefts has now
decreased dramatically.
"

Pipelines are marked at every road crossing and just about every major landowner change.  

Day bin robin dat gas wid hot taps down sa Na'orlens town na on 100 yera.

There's too many pipeline qualified welders and too much wild swamps to keep an eye on every foot of pipeline.  Those guys get out there and make hot taps (welding on the pipeline while under pressure) to run a 1 inch line over to the house.  Fortunately, that's gotten harder to get away with since the advent of leak detection.  DO NOT TRY THIS AT HOME!

Down in Colombia they just used explosives.  If they didn't have that, they would unbolt the flanges.  Not very discrete and makes a BIG mess.

You can also run a parallel wire under a Hi V electrical transmission line and induct power off of it without ever touching it, but also illegal.

How much does a section of rail weigh?  This doesn't sound like a job that will be taken on by crackheads in a Toyota pickup.
I doubt it was crackheads in the Weimar, Germany case.  They apparently spent several days at it.  Finally the mayor of one of the towns the tracks went through called to ask if they were removing the tracks.  That was when they realized 3 miles had been dug up and stolen.  They said it was likely sold for scrap; the price of scrap steel has more than tripled over the past couple of years.  

It's really amazing what you can get away with if you're wearing a coverall or a hardhat.  People just ignore you, assuming you're on some kind of official business.

Someone stole the soda vending machine from my office.  He just dressed in a coverall and brought a handtruck.  Not only did we not stop him.  We helped him load it in his truck.  

I'm a security guard. We walk a line between security and helpfullness, and the line changes at every post. My current post has no security. One of my last posts had very, very, high security. Depends.
The USGS  Provides neat maps of the Whole Country.  Most people can get them in hiking and camping shops near them or even order them from the USGS.   All Features are labeled,  Gas and Oil Pipelines too.

Take out 3 or 4 high power electrical towers and poof most places have to re-route.   I have only written in Fiction, I am wondering If I should even try to publish that story.    "Sucidial mailman car bombs city"  But the Mailman save the day.

Almost all of our inplace day to day living is in a map somewhere and is up for public veiwing.

If they really wanted to hurt us, we could not stop them.  

I wish you would post more often. You come in and out of here when you like, and that of course is part of the deal, but you are the real deal and we have more to learn from you that you from us.