CHICAGO, June 17 (Reuters) - Spot basis bids for U.S. soybeans and corn were mixed in the U.S. Midwest on Tuesday, dealers said.

• The soy basis declined at an Iowa river terminal and increased at an Illinois river terminal.

• The corn basis increased at a Chicago processor, decreased at an Iowa river terminal and rose at an Iowa elevator.

• Chicago Board of Trade soybean futures closed higher on Tuesday, supported by rising crude oil prices and uncertainty about Midwest crop weather in the weeks ahead, while soyoil prices eased following a sharp two-day rally tied to stronger U.S. biofuel blending mandates.

• Strength in energy markets supported corn and soybeans, given the crops' role in the production of biofuels. U.S. crude oil prices climbed 4% as the Iran-Israel conflict raged with no end in sight, though major oil and gas infrastructure and flows have so far been spared from substantial impact.

• CBOT July soybeans SN25 settled up 4-1/4 cents at $10.74 per bushel.

• CBOT July corn CN25 settled down 3-1/4 cents at $4.31-1/2 a bushel.

Basis values are quoted against CBOT futures in cents/bu:

NOTE: 0 = Option Price, UNC = Unchanged, UNQ = Unquoted,

NC = Not Comparable, DP = Delayed Price, N/A = Not Available,

F = January, H = March, K = May, N = July, Q = August,U = September, X = November, Z = December

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LINKS: 0#USCSHGRN-AM

For U.S. forward basis spreadsheets, please click on:

CORN/BASIS, SOYA/BASIS, WHEAT/BASIS, MILO/BASIS

- CBOT corn report COR/

- CBOT soybean report SOY/C

- CBOT wheat report WHE/C

- U.S. grain barge freight values BG/US

- U.S. Midwest cash grain AM GRA/M

- U.S. CIF/FOB Gulf Grain GRA/F

(Reporting by Heather Schlitz, editing by Deepa Babington)

((Heather.Schlitz@thomsonreuters.com;))