Slots Online Canada Home PageVideo SlotsBook Of Oil Online Slot

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Author Lisa Michaels

Book of Oil Online Slot

Book of Oil Online Slot is a 5x3 reel, 10 payline, medium volatility title by Endorphina.  Join the high-flying world of oil barons and claim a tycoon’s share of wealth as piles of cash and barrels of oil appear on the reels as some of the symbols. Choose which symbol to imbue with a special ability and drill deep to win with the bonus features that include free spins and expanding symbols. This game is compatible across all devices.

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Return to Player


Book of Oil

Game Details

Software providerSoftware:




Reels amountReels:


Slot VolatilityVolatility:


Slot Game TypeGame type:

Video Slots

Slot PaylinesPaylines:


Min coin betMin coin:


Max coin betMax coin:


Free spins offeredFree spins:


Wild SymbolsWild symbol:


Progressive jackpotProgressive:




Game Features

  • The lower-value symbols are shiny 10 to A card royals.
  • 10, J, and Q pay 10x your stake for 5 on a payline.
  • K and A pay 15x your stake for 5 on a payline.
  • The higher value symbols are all oil-related images.
  • The stacks of cash and oil barrels pay 75x your stake for 5 on a payline.
  • The oil pump pays 200x your stake for 5 on a payline.
  • The smiling businessman pays 500x your stake for 5 on a payline.
  • A purple and gold book acts as both the scatter and the wild, standing in for any other symbol and triggering free spins while paying 18x your stake for 5 on a payline.

Bonus Features

Free Spins

Land 3 or more book symbols on the reels to receive 10 free spins where a random symbol is selected to become the special expanding symbol that will grow to cover the entire reel that it lands on while the feature is active. You can buy your way into this feature by using the Bonus Pop option that offers you various free spins options with your choice of expanding symbol for a price.


At the end of a winning spin, you will be able to choose whether to play a win-boosting game of chance. You will choose one of four face-down playing cards and if you have a card of higher value than the dealer’s, your win will be doubled. You can play up to ten times, but a losing card means you lose all your winnings will be lost.


Book of Oil slot hits all the required notes to be an engaging slot, but the features can feel pedestrian when contrasted with the theme. The game’s visual premise is well constructed with immersive graphics in intense hues. The base game lacks any features to spice up your gameplay experience but things get interesting when you trigger free spins and expanding symbols enhance your winning chances. It would have been interesting to see some link between the theme and the features, however, this slot generates plenty of exciting moments and with a top winning potential of $500 000, venturing into the oil business might just be your best decision yet.

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Author Lisa Michaels

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Lisa started off as a croupier at her local casino. However she found her niche in writing and has subsequently used her real-world gambling experiences to help produce and review the many online slots that are released monthly. Lisa also contributes to keeping you up to date with Canadian newsworthy stories.

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