diff --git a/core/block_processor.go b/core/block_processor.go
index c78d419ce..e30ced312 100644
--- a/core/block_processor.go
+++ b/core/block_processor.go
@@ -58,7 +58,7 @@ func NewBlockProcessor(db, extra common.Database, pow pow.PoW, chainManager *Cha
 
 func (sm *BlockProcessor) TransitionState(statedb *state.StateDB, parent, block *types.Block, transientProcess bool) (receipts types.Receipts, err error) {
 	coinbase := statedb.GetOrNewStateObject(block.Header().Coinbase)
-	coinbase.SetGasPool(block.Header().GasLimit)
+	coinbase.SetGasLimit(block.Header().GasLimit)
 
 	// Process the transactions on to parent state
 	receipts, err = sm.ApplyTransactions(coinbase, statedb, block, block.Transactions(), transientProcess)
diff --git a/core/chain_makers.go b/core/chain_makers.go
index 4e685f599..76acfd6ca 100644
--- a/core/chain_makers.go
+++ b/core/chain_makers.go
@@ -79,7 +79,7 @@ func makeBlock(bman *BlockProcessor, parent *types.Block, i int, db common.Datab
 	block := newBlockFromParent(addr, parent)
 	state := state.New(block.Root(), db)
 	cbase := state.GetOrNewStateObject(addr)
-	cbase.SetGasPool(CalcGasLimit(parent))
+	cbase.SetGasLimit(CalcGasLimit(parent))
 	cbase.AddBalance(BlockReward)
 	state.Update()
 	block.SetRoot(state.Root())
diff --git a/core/state/state_object.go b/core/state/state_object.go
index 2e4fe3269..a31c182d2 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -104,7 +104,6 @@ func NewStateObjectFromBytes(address common.Address, data []byte, db common.Data
 	}
 
 	object := &StateObject{address: address, db: db}
-	//object.RlpDecode(data)
 	object.nonce = extobject.Nonce
 	object.balance = extobject.Balance
 	object.codeHash = extobject.CodeHash
@@ -215,20 +214,8 @@ func (c *StateObject) St() Storage {
 
 // Return the gas back to the origin. Used by the Virtual machine or Closures
 func (c *StateObject) ReturnGas(gas, price *big.Int) {}
-func (c *StateObject) ConvertGas(gas, price *big.Int) error {
-	total := new(big.Int).Mul(gas, price)
-	if total.Cmp(c.balance) > 0 {
-		return fmt.Errorf("insufficient amount: %v, %v", c.balance, total)
-	}
 
-	c.SubBalance(total)
-
-	c.dirty = true
-
-	return nil
-}
-
-func (self *StateObject) SetGasPool(gasLimit *big.Int) {
+func (self *StateObject) SetGasLimit(gasLimit *big.Int) {
 	self.gasPool = new(big.Int).Set(gasLimit)
 
 	if glog.V(logger.Core) {
@@ -236,7 +223,7 @@ func (self *StateObject) SetGasPool(gasLimit *big.Int) {
 	}
 }
 
-func (self *StateObject) BuyGas(gas, price *big.Int) error {
+func (self *StateObject) SubGas(gas, price *big.Int) error {
 	if self.gasPool.Cmp(gas) < 0 {
 		return GasLimitError(self.gasPool, gas)
 	}
@@ -251,7 +238,7 @@ func (self *StateObject) BuyGas(gas, price *big.Int) error {
 	return nil
 }
 
-func (self *StateObject) RefundGas(gas, price *big.Int) {
+func (self *StateObject) AddGas(gas, price *big.Int) {
 	self.gasPool.Add(self.gasPool, gas)
 }
 
diff --git a/core/state_transition.go b/core/state_transition.go
index 4a8d92375..915dd466b 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -151,7 +151,7 @@ func (self *StateTransition) BuyGas() error {
 	}
 
 	coinbase := self.Coinbase()
-	err = coinbase.BuyGas(self.msg.Gas(), self.msg.GasPrice())
+	err = coinbase.SubGas(self.msg.Gas(), self.msg.GasPrice())
 	if err != nil {
 		return err
 	}
@@ -245,20 +245,9 @@ func (self *StateTransition) refundGas() {
 	self.gas.Add(self.gas, refund)
 	self.state.AddBalance(sender.Address(), refund.Mul(refund, self.msg.GasPrice()))
 
-	coinbase.RefundGas(self.gas, self.msg.GasPrice())
+	coinbase.AddGas(self.gas, self.msg.GasPrice())
 }
 
 func (self *StateTransition) gasUsed() *big.Int {
 	return new(big.Int).Sub(self.initialGas, self.gas)
 }
-
-// Converts an message in to a state object
-func makeContract(msg Message, state *state.StateDB) *state.StateObject {
-	faddr, _ := msg.From()
-	addr := crypto.CreateAddress(faddr, msg.Nonce())
-
-	contract := state.GetOrNewStateObject(addr)
-	contract.SetInitCode(msg.Data())
-
-	return contract
-}
diff --git a/miner/worker.go b/miner/worker.go
index d339507ca..55c23376c 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -319,7 +319,7 @@ func (self *worker) makeCurrent() {
 		current.localMinedBlocks = self.current.localMinedBlocks
 	}
 
-	current.coinbase.SetGasPool(core.CalcGasLimit(parent))
+	current.coinbase.SetGasLimit(core.CalcGasLimit(parent))
 
 	self.current = current
 }
diff --git a/xeth/xeth.go b/xeth/xeth.go
index 7342be4a9..99e17423a 100644
--- a/xeth/xeth.go
+++ b/xeth/xeth.go
@@ -212,7 +212,7 @@ func (self *XEth) ApplyTestTxs(statedb *state.StateDB, address common.Address, t
 
 	block := self.backend.ChainManager().NewBlock(address)
 	coinbase := statedb.GetStateObject(address)
-	coinbase.SetGasPool(big.NewInt(10000000))
+	coinbase.SetGasLimit(big.NewInt(10000000))
 	txs := self.backend.TxPool().GetQueuedTransactions()
 
 	for i := 0; i < len(txs); i++ {
@@ -827,7 +827,7 @@ func (self *XEth) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr st
 	}
 
 	from.SetBalance(common.MaxBig)
-	from.SetGasPool(self.backend.ChainManager().GasLimit())
+	from.SetGasLimit(self.backend.ChainManager().GasLimit())
 	msg := callmsg{
 		from:     from,
 		to:       common.HexToAddress(toStr),