DEVON ENERGY CORPORATION AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued) Proved Undeveloped Reserves The following table presents the changes in Devon’s total proved undeveloped reserves during 2015 (MMBoe).
## Table 0 ##
Proved undeveloped reserves decreased 45% from year-end 2014 to year-end 2015, and the year-end 2015 balance represents 17% of total proved reserves.
Drilling and development activities increased Devon’s proved undeveloped reserves 24 MMBoe and resulted in the conversion of 182 MMBoe, or 26%, of the 2014 proved undeveloped reserves to proved developed reserves.
Costs incurred to develop and convert Devon’s proved undeveloped reserves were approximately $2.2 billion for 2015.
Additionally, revisions other than price decreased Devon’s proved undeveloped reserves 120 MMBoe primarily due to evaluations of certain properties in the U. S.  and Canada.
The largest revisions, which reduced reserves by 80 MMBoe, relate to evaluations of Jackfish bitumen reserves.
Of the 40 MMBoe revisions recorded for U. S.  properties, a reduction of approximately 27 MMBoe represents reserves that Devon now does not expect to develop in the next five years, including 20 MMBoe attributable to the Eagle Ford.
A significant amount of Devon’s proved undeveloped reserves at the end of 2015 related to its Jackfish operations.
At December 31, 2015 and 2014, Devon’s Jackfish proved undeveloped reserves were 301 MMBoe and 384 MMBoe, respectively.
Development schedules for the Jackfish reserves are primarily controlled by the need to keep the processing plants at their 35 MBbl daily facility capacity.
Processing plant capacity is controlled by factors such as total steam processing capacity and steam-oil ratios.
Furthermore, development of these projects involves the up-front construction of steam injection/distribution and bitumen processing facilities.
Due to the large up-front capital investments and large reserves required to provide economic returns, the project conditions meet the specific circumstances requiring a period greater than 5 years for conversion to developed reserves.
As a result, these reserves are classified as proved undeveloped for more than five years.
Currently, the development schedule for these reserves extends through to 2030.
At the end of 2015, approximately 184 MMBoe of proved undeveloped reserves at Jackfish have remained undeveloped for five years or more since the initial booking.
No other projects have proved undeveloped reserves that have remained undeveloped more than five years from the initial booking of the reserves.
Furthermore, approximately 180 MMBoe of proved undeveloped reserves at Jackfish will require in excess of five years, from the date of this filing, to develop.
Price Revisions 2015 – Reserves decreased 302 MMBoe primarily due to lower commodity prices across all products.
The lower bitumen price increased Canadian reserves due to the decline in royalties, which increases Devon’s afterroyalty volumes.2014 – Reserves increased 9 MMBoe primarily due to higher gas prices in the Barnett Shale and the Anadarko Basin, partially offset by higher bitumen prices, which result in lower after-royalty volumes, in Canada.
IRON MOUNTAIN INCORPORATED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) DECEMBER 31, 2015 (In thousands, except share and per share data) 2.
Summary of Significant Accounting Policies (Continued) 104 q.  Allowance for Doubtful Accounts and Credit Memo Reserves We maintain an allowance for doubtful accounts and credit memos for estimated losses resulting from the potential inability of our customers to make required payments and potential disputes regarding billing and service issues.
When calculating the allowance, we consider our past loss experience, current and prior trends in our aged receivables and credit memo activity, current economic conditions and specific circumstances of individual receivable balances.
If the financial condition of our customers were to significantly change, resulting in a significant improvement or impairment of their ability to make payments, an adjustment of the allowance may be required.
We charge-off uncollectible balances as circumstances warrant, generally, no later than one year past due.
Rollforward of allowance for doubtful accounts and credit memo reserves is as follows:
## Table 1 ##
(1) Primarily consists of recoveries of previously written-off accounts receivable, allowances of businesses acquired and the impact associated with currency translation adjustments.
(2) Primarily consists of the issuance of credit memos and the write-off of accounts receivable.
r.  Concentrations of Credit Risk Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents (including money market funds and time deposits), restricted cash (primarily United States Treasuries) and accounts receivable.
The only significant concentrations of liquid investments as of December 31, 2014 related to cash and cash equivalents and restricted cash held on deposit and as of December 31, 2015 related to cash and cash equivalents.
At December 31, 2014, we had money market funds with two "Triple A" rated money market funds and time deposits with three global banks.
At December 31, 2015, we had time deposits with four global banks.
As per our risk management investment policy, we limit exposure to concentration of credit risk by limiting the amount invested in any one mutual fund to a maximum of $50,000 or in any one financial institution to a maximum of $75,000.
As of December 31, 2014 and 2015, our cash and cash equivalents and restricted cash balance was $159,793 and $128,381, respectively.
At December 31, 2014, our cash and cash equivalents included money market funds of $36,828, which were invested substantially in United States Treasuries and time deposits of $16,204.
At December 31, 2015, our cash and cash equivalents included time deposits of $18,645.
s.  Fair Value Measurements Entities are permitted under GAAP to elect to measure many financial instruments and certain other items at either fair value or cost.
We have elected the cost measurement option.
Our financial assets or liabilities that are carried at fair value are required to be measured using inputs from the three levels of the fair value hierarchy.
A financial asset or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.
The three levels of the fair value hierarchy are as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access at the measurement date.
IRON MOUNTAIN INCORPORATED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) DECEMBER 31, 2015 (In thousands, except share and per share data) 5.
Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors (Continued) 125 CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued
## Table 2 ##

Tables referenced above, in order (Table 0 first):
<table><tr><td></td><td>U.S.</td><td>Canada</td><td>Total</td></tr><tr><td>Proved undeveloped reserves as of December 31, 2014</td><td>305</td><td>384</td><td>689</td></tr><tr><td>Extensions and discoveries</td><td>13</td><td>11</td><td>24</td></tr><tr><td>Revisions due to prices</td><td>-115</td><td>80</td><td>-35</td></tr><tr><td>Revisions other than price</td><td>-40</td><td>-80</td><td>-120</td></tr><tr><td>Conversion to proved developed reserves</td><td>-88</td><td>-94</td><td>-182</td></tr><tr><td>Proved undeveloped reserves as of December 31, 2015</td><td>75</td><td>301</td><td>376</td></tr></table>
<table><tr><td>Year Ended December 31,</td><td>Balance atBeginning ofthe Year</td><td>Credit MemosCharged toRevenue</td><td>Allowance forBad DebtsCharged toExpense</td><td>Other-1</td><td>Deductions-2</td><td>Balance atEnd ofthe Year</td></tr><tr><td>2013</td><td>$25,209</td><td>$49,483</td><td>$11,321</td><td>$3,612</td><td>$-54,980</td><td>$34,645</td></tr><tr><td>2014</td><td>34,645</td><td>47,137</td><td>14,209</td><td>-572</td><td>-63,278</td><td>32,141</td></tr><tr><td>2015</td><td>32,141</td><td>42,497</td><td>15,326</td><td>-4,511</td><td>-54,006</td><td>31,447</td></tr></table>
<table><tr><td></td><td colspan="6">Year Ended December 31, 2015</td></tr><tr><td></td><td>Parent</td><td>Guarantors</td><td>CanadaCompany</td><td>Non-Guarantors</td><td>Eliminations</td><td>Consolidated</td></tr><tr><td>Cash Flows from Operating Activities:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Cash Flows from Operating Activities</td><td>$-161,287</td><td>$568,360</td><td>$39,181</td><td>$95,506</td><td>$—</td><td>$541,760</td></tr><tr><td>Cash Flows from Investing Activities:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Capital expenditures</td><td>—</td><td>-189,213</td><td>-15,128</td><td>-85,908</td><td>—</td><td>-290,249</td></tr><tr><td>Cash paid for acquisitions, net of cash acquired</td><td>—</td><td>-9,902</td><td>-5,260</td><td>-98,396</td><td>—</td><td>-113,558</td></tr><tr><td>Intercompany loans to subsidiaries</td><td>334,019</td><td>320,932</td><td>—</td><td>—</td><td>-654,951</td><td>—</td></tr><tr><td>Investment in subsidiaries</td><td>-25,276</td><td>-25,276</td><td>—</td><td>—</td><td>50,552</td><td>—</td></tr><tr><td>Decrease in restricted cash</td><td>33,860</td><td>—</td><td>—</td><td>—</td><td>—</td><td>33,860</td></tr><tr><td>Acquisitions of customer relationships and customer inducements</td><td>—</td><td>-44,024</td><td>-576</td><td>-10,511</td><td>—</td><td>-55,111</td></tr><tr><td>Proceeds from sales of property and equipment and other, net (including real estate)</td><td>—</td><td>586</td><td>49</td><td>1,637</td><td>—</td><td>2,272</td></tr><tr><td>Cash Flows from Investing Activities</td><td>342,603</td><td>53,103</td><td>-20,915</td><td>-193,178</td><td>-604,399</td><td>-422,786</td></tr><tr><td>Cash Flows from Financing Activities:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Repayment of revolving credit and term loan facilities and other debt</td><td>—</td><td>-8,456,062</td><td>-754,703</td><td>-1,586,108</td><td>—</td><td>-10,796,873</td></tr><tr><td>Proceeds from revolving credit and term loan facilities and other debt</td><td>47,198</td><td>8,220,200</td><td>835,101</td><td>1,823,210</td><td>—</td><td>10,925,709</td></tr><tr><td>Early retirement of senior subordinated notes</td><td>-814,728</td><td>—</td><td>—</td><td>—</td><td>—</td><td>-814,728</td></tr><tr><td>Net proceeds from sales of senior notes</td><td>985,000</td><td>—</td><td>—</td><td>—</td><td>—</td><td>985,000</td></tr><tr><td>Debt financing (repayment to) and equity contribution from (distribution to) noncontrolling interests, net</td><td>—</td><td>—</td><td>—</td><td>5,574</td><td>—</td><td>5,574</td></tr><tr><td>Intercompany loans from parent</td><td>—</td><td>-398,514</td><td>-94,038</td><td>-162,399</td><td>654,951</td><td>—</td></tr><tr><td>Equity contribution from parent</td><td>—</td><td>25,276</td><td>—</td><td>25,276</td><td>-50,552</td><td>—</td></tr><tr><td>Parent cash dividends</td><td>-406,508</td><td>—</td><td>—</td><td>—</td><td>—</td><td>-406,508</td></tr><tr><td>Proceeds from exercise of stock options and employee stock purchase plan</td><td>7,149</td><td>—</td><td>—</td><td>—</td><td>—</td><td>7,149</td></tr><tr><td>Excess tax benefit from stock-based compensation</td><td>327</td><td>—</td><td>—</td><td>—</td><td>—</td><td>327</td></tr><tr><td>Payment of debt financing costs and stock issuance costs</td><td>-2,002</td><td>-10,604</td><td>—</td><td>-1,555</td><td>—</td><td>-14,161</td></tr><tr><td>Cash Flows from Financing Activities</td><td>-183,564</td><td>-619,704</td><td>-13,640</td><td>103,998</td><td>604,399</td><td>-108,511</td></tr><tr><td>Effect of exchange rates on cash and cash equivalents</td><td>—</td><td>—</td><td>3,577</td><td>-11,592</td><td>—</td><td>-8,015</td></tr><tr><td>(Decrease) Increase in cash and cash equivalents</td><td>-2,248</td><td>1,759</td><td>8,203</td><td>-5,266</td><td>—</td><td>2,448</td></tr><tr><td>Cash and cash equivalents, beginning of year</td><td>2,399</td><td>4,713</td><td>4,979</td><td>113,842</td><td>—</td><td>125,933</td></tr><tr><td>Cash and cash equivalents, end of year</td><td>$151</td><td>$6,472</td><td>$13,182</td><td>$108,576</td><td>$—</td><td>$128,381</td></tr></table>

Question: What's the sum of all CanadaCompany that are positive in 2015?
Answer: 891090
Reasoning program: add(39181,49), add(#0,835101), add(#1,3577), add(#2,8203), add(#3,4979)