CANBERRA, Oct 20 (Reuters) - U.S. soybean futures edged lower on Wednesday after four straight sessions of gains, though strong demand for U.S. supplies kept prices near a one-week high.

FUNDAMENTALS

* The most active soybean futures on the Chicago Board Of Trade were down 0.1% at $12.27 a bushel by 0057 GMT, having firmed 0.5% on Tuesday when prices hit an Oct. 11 high of $12.39-1/4 a bushel.

* The most active corn futures were down 0.1% at $5.29-1/2 a bushel, having closed down 0.5% in the previous session.

* The most active wheat futures were up 0.3% at $7.38 a bushel, having closed little changed in the previous session.

* The U.S. soybean harvest was 60% complete by Sunday, ahead of the five-year national average of 55%, the U.S. Department of Agriculture (USDA) said. But progress was slower than normal in Illinois, the top U.S. soy state, as well as in Indiana and Ohio.

* The U.S. corn crop was 52% harvested, the USDA said, ahead of the five-year average of 41% but behind the average analyst expectation of 54%.

* Ukrainian farms have harvested 52 million tonnes of grain from almost 73% of its sowing area, with the yield averaging 4.48 tonnes per hectare, the agriculture ministry said on Tuesday.

MARKET NEWS

* The dollar pared losses on Tuesday as Treasury yields climbed but remained lower on the day as other currencies, including sterling, were boosted by expectations of sooner-than-previously expected interest rate hikes.

* Oil futures rose on Tuesday and were near multi-year highs as an energy supply crunch continued across the globe, while falling temperatures in China revived concerns over whether the world's biggest energy consumer can meet domestic heating needs.

* Stock indexes around the world jumped on Tuesday as U.S. technology shares extended recent gains and earnings reports were upbeat, while the To-year U.S. Treasury yield rose to its highest in more than four months.

(Reporting by Colin Packham; Editing by Subhranshu Sahu)