Much has been written about rare earth metals. They are used in electronics, batteries and specialized magnets. China controls more than 90% of rare earth production and has put a ban on exports of the minerals.

The largest miner of rare earths outside China is Molycorp (MCP), a U.S.-based company. The company mines lanthanide and molydenum. Lanthanides include cerium, lanthanum and yttrium. These exotic elements are used in cell phones, computers, X-ray film and TV glass.

Here's an interesting story, which speaks volumes about the psychological dynamic of the markets. On Friday the United States Department of Agriculture (USDA) will report on end-of-season inventories, often called 'ending stocks.' Traders are getting word the report may show inventories are lower-than-usual. Against that backdrop, as a trader you certainly don't want to take a short position. So what to do? You buy, of course.

Monday's buying drove corn prices to a record high of $7.6025 per bushel, up 24.25 cents, as reported in the Wall Street Journal. Country Hedging, a brokerage firm, said: "Federal forecasters could drop the projection to less than 500 million bushels from last month's 675 million. This is a 15 year low."

• OPEC production fell 411,000 barrels per day to 29,343 million bpd.
• Libya's production fell 343,000 barrels per day, from 1,396,000 bpd.
• Nigeria fell 107,000 barrels per day due to Royal Dutch (RDS) Oil maintenance.

Here it is in a nutshell: Prices of grains and cotton have skyrocketed year to date. The United States Department of Agriculture's (USDA) report released Thursday stated that corn and wheat prices have doubled in the past year. Soybeans were up 50% and cotton was up 155%, as reported in the Wall Street Journal.

What has caused these sharp increases? The key mover has been exports. China, India and countries in the Mideast are stockpiling grains over fears that they will not have enough to feed their people. Corn in storage fell 15% on March 1. Corn has been hit doubly hard because 40% of it is used for ethanol production and a large amount goes for livestock feed.

The Financial Times has seen a U.S. diplomatic cable from WikiLeaks that states that Iran has bought significant amounts of gold. The word is that Tehran holds 300 tons of gold, up from 169 tons in 1996.

Gold, oil and the U.S. dollar: The oil-rich Middle East sells oil throughout the world. Oil is priced in dollars. The U.S. dollar is the reserve currency for oil. That means that Mideast countries are loaded with U.S. dollars.

Japan has closed 11 nuclear plants. They will need a different energy source to replace their nuclear losses. Natural gas is one such energy source. Natural gas must be liquefied for transport. Much of the liquefied natural gas (LNG) supply could come from Europe.

One company, Golar (GLNG), has a fleet of transport ships that can carry LNG. Their ships have the capacity to dock at a port and transfer their LNG supply to an onshore receiving unit. Their ships have special units that can do the transfer operation. The fleet is capable of carrying 1.7 cubic meters of LNG.

Except for the safe haven of U.S. treasuries and the U.S. dollar, most other commodities are getting slaughtered in the wake of the Japanese crisis.

Here are some prices of nearby contracts compared to five days ago:

• WTI crude is trading at $97.68 per barrel, down from $105.
• Wheat is at $6.89 per bushel, down for $7.89.

Every major crisis has its winners and losers. With the Japanese crisis, most prominent may be the uranium stocks. As you might guess they are getting hammered. The presumption is that governments will be reluctant to approve nuclear projects in the wake of Japan's nuclear meltdown.

Here are just a few companies and recent stock prices:

• Denison Mines (DNN): $2.55, down 74 cents. Denison is a worldwide mining and exploration company. It has two uranium waste recycling plants in the U.S.

The turmoil in North Africa and the Middle East has put pressure on the Obama Administration to resume issuing permits for deep water drilling in the Gulf of Mexico. Noble Energy (NBL) was the first to obtain a permit since the BP (BP) disaster.

Noble is an international oil and gas exploration company that operates in the U.S. and internationally. In the U.S. it has operations on the West Coast, Rocky Mountains, mid continent and the Gulf of Mexico. Its international operations are located in the Middle East, South American and West Africa.

Gas prices are rising and show no signs of coming back down. In fact the predictions are for higher prices to come. At the moment, gasoline averages $3.542 per gallon, according the the AAA motorist group, as reported by CNNMoney.

The highest recorded nationwide price was $4.114 on July 17, 2008. Forecasters are looking for the $4.00 per gallon marker to be hit by this summer.

We have yet another food product to add to the inflation list. This time it's cattle. Cattle futures on the Chicago Mercantile Exchange closed at an all-time high of $1.1752 per pound, as reported in the Wall Street Journal.

Beef is a in a special category. Unlike grains, which are harvested yearly, it takes about three years to raise cattle and bring them to market. High grain prices and high exports have shrunk the size of herds. They are at their lowest levels since the 1950s. With prices so high, some cattle ranchers choose to slaughter their cattle rather than let them mature to full term. These young cattle are called feeder cattle.

The Department of Energy has had to up its forecast its forecast for oil prices for 2011 and 2012 from last month. The updated forecast takes into account the loss of one million barrels per day from the Libyan conflict, The Wall Street Journal reported.

Last month, the DOE's Energy Information Administration's (EIA) estimate for West Texas Intermediate (WTI) crude was $91 per barrel for 2011. Now, EIA forecasts WTI crude to average $102 per barrel in 2011 and $104 per barrel in 2012. The EIA qualified its forecast with this statement: "There is significant uncertainty surrounding this forecast."

• BHP Billiton (BHP), the world's number one miner, had earnings before interest and taxes of $14.82 billion. Of that amount, iron ore accounted for $5.8 billion, up 177%
• Number three miner, Rio Tinto (RTPPF), had earnings of $26.6 billion. Iron ore unit accounted for 60%, or $16.6 billion, up 133% for the year.