The Catastrophic Consequences of a Concave Coastline

One of the issues the Virginia Energy Plan grapples with is development of Virginia’s offshore natural gas reserves. That’s an interesting issue, but not half as interesting as the questions arising from the map displayed above. Look at the wedge of continental shelf allocated to Virginia. How come it’s so small? Why does our share get narrower as it extends further into the ocean?

As the old real estate saying goes, they’re not making any more land. But the federal bureaucrats in the Minerals Management Service are handing out more land — it just happens to be underwater. This is no esoteric matter. These administrative boundaries govern which state has authority over offshore natural resources. In Virginia’s case, our slice contains an estimated 56 million barrels of oil and 327 million cubic feet of natural gas. If the boundaries were drawn differently, it could be a whole lot more.

How did Virginia wind up with the short end of the pie wedge? Here’s what the energy plan says: The Minerals Management Service established the boundaries using “an equidistance methodology for the purpose of managing offshore resources.”

The equidistance methodology expands the area attributable to states with convex coastlines and decreases the areas attributable to states, such as Virginia, with concave-shaped coastlines. Use of equidistant boundaries reduces the Commonwealth’s ability to influence decisions about offshore resource development.

Those offshore resources include not only oil and gas but sand, other minerals and renewable energy sources such as wind and tidal power, which in the long run could far exceed oil and gas in importance to the Virginia economy.

Virginia got the short end of the stick on this one. Administrative boundaries that extend due east would have yielded Virginia a much larger share of the continental shelf. Where were our congressmen when these decisions were being made? Is there some way to appeal the inequitable distribution of offshore territory and resources?


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4 responses to “The Catastrophic Consequences of a Concave Coastline”

  1. Anonymous Avatar

    Interesting issue but unclear. Are you saying that Virginia’s coastal shelves extend farther out than the map shows? If so, how far out? How deep was the water get? I know that off Hatteras, the coast depth is very shallow and then takes a huge plunge.
    Water depth is key in figuring the costs of oil and gas drilling.

  2. E M Risse Avatar

    This is a plane gemometry issue, not a water depth issue.

    Because Virginia has a concave coastline the perpendiculars to the coast line and the south and north converge and intersect not far from shore. For this reason, North Carolina and Maryland have the rights to sea bed exploration that under some other geometry would be Virginia’s.

    EMR

  3. Anonymous Avatar

    The boundaries were drawn “administratively” – which means by some bureaucrats in the Bush II administration. An act of Congress will fix it, if any Congress be so bold as to do something about it — and while they are at it — the stupid moratoria and executive orders that have been Holy Grail — due to electoral votes in Hollywood (CA and FL).

  4. Anonymous Avatar

    Not sure I buy the idea that Virginia is being shortchanged. Virginia’s waters remain relatively shallow far out and are vpresumably easier to mine or drill.

    North Carolina’s waters are shallow but drop off very sharply east of Cape Hatteras. What’s more, the immediate waters around Diamond Shoals stretching maybe 20 miles out are so treacherous even small boats avoid them. Any fisherman or cuba diver can tell you this.

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