Cash Game Strategy

General Strategy
In Omaha High-Low the high hand winner must split the pot with the player with the best qualifying low hand. There is always a high hand winner but not always a low. For your hand to qualify for low, it must have five denominations no higher than an eight. Any two of your your four down cards are played for high and any two are played for low. Players must play exactly two out of their hands for each direction. Aces are played both high and low. Straights and flushes do not disqualify a hand for low, so a player ending with 5 4 3 2 A would have an unbeatable low hand and a 5 high straight to play for high. A player with this hand would have a good chance of winning both ways. He or she could also have another high hand better than the straight.
The most important thing to keep in mind in split pot games is the big profit difference between winning half the pot and "scooping" it all. - It is a lot more than just twice as much. . Scooping the pot usually builds a healthy addition to your stack of chips. Getting half often puts you barely ahead of where you were before you started playing the hand. Expert Omaha Hi Lo players only play starting hands, like those recommended here, that have a good chance of winning both ways. Omaha is a game of "nuts". With so many players with so many cards, finding so many reasons to play, a final hand with a fairly good high and a fairly good low can easily get clobbered by better hands both ways. So after the flop or maybe the turn, if it looks like you don't have an almost certain winner for one end and a decent shot at the other, or the best high hand with no qualifying low probable, you should usually fold up and wait for the next hand.

Definitions: Four Basic Card Groups
ACES - A
LOW CARDS - 5, 4, 3, 2
MIDDLE CARDS - 10, 9, 8, 7, 6
HIGH CARDS - K, Q, J

Other Definitions
WHEEL - (5 4 3 2 A). Can be played as the lowest possible hand, a straight for high or both.
SUITED PLAYER HAND (S) - Two of the players four cards of the same suit.
DOUBLE SUITED PLAYER HAND (DS) - Two of the players cards of one suit and two of another suit.
SET - Three of a kind with two of the three in your hand. (One in your hand and two on the board is "trips".)
NUT HAND - An unbeatable high or low hand. Sometimes called a "lock".
FLOP, TURN. RIVER - The community cards in the order of distribution. See top illustration.
SCOOP - Win both high and low ends of the pot or win it all with a high hand when there is no low.
FAST PLAY - Bet, raise and re-raise to get as many other players out as possible.
SLOW PLAY - Just check or call along to keep other players in the game and increase the pot odds.
CHECK-FOLD - Check when you can and fold if you are bet into. Gladly accept all free cards offered.

Throw-Away Starting Hands
These hands should be automatically folded without any further consideration:
Quads - (including) A A A A
Trip Threes thru Trip Kings - 3 3 3 X - K K K X
Three or more unpaired Middle Cards - X 6 7 9
Playable Starting Hands:
Note: The best possible starting hand is AA23(DS)

SOME TRIP ACES and TRIP DUECES - These only: 2AAA, 3AAA, 4AAA(S), 5AAA(S), 222A(S)
PAIR of ACES with LOW CARDS - AA23, AA44, AA35 etc.
PAIR of ACES SUITED with ANYTHING - Ah A Xh X
A2 with ANYTHING - A2XX
A3 with LOW CARDS - Paired or unpaired. A344,A345, A355
A3/ ACE SUITED with ANYTHING - Ad A Xd X
ACE SUITED with THREE UNPAIRED HIGH CARDS - Ac Jc Q K etc.
FOUR UNPAIRED LOW CARDS - 2345
TWO HIGH PAIR DOUBLESUITED - Kh Kd Qh Qd etc.

Strategy Tips
Remember that you only play to scoop the pot, so after the flop, if your high hand is not a certain winner and will probably have to split with the low, or if you are playing for low and don't have a decent shot at the high hand, usually check/fold and get out early. Slow play most Omaha hands. It is very difficult to run players off in this game and early raises are risky unless you know you can't lose.
Usually avoid playing middle suited connectors. Hands like 8h 9h that are often very playable in Holdem and Omaha high, are bad news in high-low split. To make the high end of a straight, you have to catch the cards that will also qualify low hands. To play these you also need a suited ace or an A2.

Don't overbet A2, A3 and 2 3 nut lows. These are often shared with another player and you can end up getting "quartered". In other words, if there are two playing the same nut low and one going high, you are in a situation where every bet you make contributes 1/3 to the pot that will only pay you 1/4 back. You do better if you can check around. Fast play in this situation only makes you money if there are three or more other players with either high or losing low hands. Watch out for uniform flops, like 8 7 6, they can easily turn into straights that can overtake your high pair trips, or other good hand. Beware of Suited Flops that can make a completed flush. In this case, you should usually hold the nut in that suit, or have trips or two pair that can fill up. Check the raisers chips. Players that are close to all-in often rush the betting just to get all their chips in a sink-or-swim last hand. Study your opponents, especially when you are not playing hands and can pay careful attention. Do they find more hands to play than they fold? Do they bluff? Can they be bluffed? Do they have any "tells" (give away mannerisms) that disclose information about their hands etc. Get caught bluffing once in a while. It is a way to vary your play and not be too predictable. You win pots that you don't deserve when your bluff works. You lose a few chips when it doesn't work but it will get you calls from weaker hands down the line when you are really strong and need the action. Pay very close attention to your cards. Omaha High Low hands can get confusing and it is sometimes easy to think you have a nut hand winner when you don't, or have the best possible hand and not realize it. Be careful to avoid these costly mistakes.