Thank you, Hank. The company's midyear financial summary is outlined on Slide 23. And as you can see, second quarter consolidated adjusted EBITDA totaled $8 million compared to $11 million in the second quarter of 2012, as a meaningful improvement in Gas segment results was more than offset by continued weakness at the Coal segment. Despite a 28% decline in total generation volumes and generally lower spark spreads, Gas segment adjusted EBITDA nearly doubled to $53 million, primarily due to the absence of negative settlements associated with legacy put options and other out of the money commercial positions, which adversely impacted results last year. The Coal segment, on the other hand, experienced a $29 million decline in quarter-over-quarter results, as outages at Baldwin and Hennepin, together with negative hedge settlements and higher rail costs, put downward pressure on quarterly results. Year-to-date, adjusted EBITDA totaled $51 million compared to $49 million during the first half of 2012. While year-over-year consolidated results were not materially different, segment results were, as a $47 million increase in Gas segment adjusted EBITDA offset a similar decline at the Coal segment, with a difference in consolidated results primarily attributable to lower G&A expenses period-over-period. Similar to the second quarter, the Gas segment benefited from the absence of legacy commercial positions, while the Coal segment expensed higher outages, higher transport costs and lower realized prices due to hedges being at lower prices than those in 2012. As previously disclosed, Dynegy completed its balance sheet restructuring during the quarter by refinancing its CoalCo and GasCo term loans with both secured and unsecured debt at the parent company level and replaced the subsidiary level revolver at GasCo with a larger parent company revolver at DI. We executed this refinancing earlier in the year than planned. But in so doing, we were able to lock in interest rates well below what we have targeted at the beginning of the year. Additionally, the amount of restricted cash release at closing was significantly higher than previously expected. Total liquidity as of Friday, July 26, was $787 million, including $500 million in unrestricted cash and $287 million in unused availability under Dynegy's new revolver. In addition to the impact of the refinancing, Dynegy's liquidity has improved as the collateral intensity of the business has been reduced. Aggregate cash and letter of credit postings are currently below $250 million, which is the lowest collateral level in 7 years. As Bob mentioned earlier, we are updating our adjusted EBITDA and free cash flow guidance today. While Gas segment earnings and results from the refinancing have exceeded our expectations, weakness at the Coal segment, driven primarily by significantly higher-than-forecasted basis differentials and the impact this had on our net realized prices, has negatively impacted guidance. Because the Coal segment decline is more pronounced than the uplift at the Gas segment, we are lowering our consolidated adjusted EBITDA guidance range by $50 million to $200 million to $225 million. Despite this, however, we are raising our free cash flow guidance by $50 million to $190 million to $215 million, as the cash flow benefits associated with the refinancing exceeded even our best case scenario. Moving to Slide 24. Second quarter adjusted EBITDA for the Coal and Gas segments totaled $29 million compared to $32 million for the second quarter of 2012. But as you can see, segment results went in opposite directions, as strength in the Gas segment was more than offset by weakness in the Coal segment. Gas segment adjusted EBITDA totaled $53 million during the second quarter of 2013 compared to $27 million during the second quarter of 2012. Last year's results were weighed down by $61 million in negative financial settlements compared to just $2 million during 2013, providing a meaningful uplift in comparative results this year. Somewhat offsetting this benefit, however, was a $19 million decline in physical energy margin as spark spreads at Kendall, Ontelaunee and Independence contracted, leading to a 28% decline in generation volumes. Additionally, capacity and tolling revenue declined by $9 million quarter-over-quarter, driven primarily by the SCE contract termination last year and lower capacity revenues, primarily at Kendall. Coal segment adjusted EBITDA totaled negative $24 million during the second quarter of 2013 compared to positive $5 million during the second quarter of 2012. During the period, the Coal segment saw significant outages at Baldwin and Hennepin, resulting in $10 million of lower gross margin and higher operating expenses compared to last year. Adjusted for lost volumes, realized revenue net of hedges declined by $13 million compared to the second quarter of 2012, as the company was the net payor under its hedges during the period versus being a net beneficiary last year. During the second quarter last year, Coal segment hedges were priced, on average, $0.88 per megawatt hour higher than average market prices during the period, resulting in $5 million of positive hedge settlements. However, during the second quarter of 2013, average hedge prices ended up being, on average, $4.85 per megawatt hour below market, leading to $14 million in negative settlements. This $19 million reduction in hedge settlements was partially offset by a $6 million increase in physical energy margin. As Hank mentioned earlier, around-the-clock basis differentials averaged $8.99 per megawatt hour, a $4.07-per-megawatt-hour increase over the same period last year. However, the rise in INDY Hub prices, compared to last year, more than offset this, leading to a $1.34-per-megawatt-hour increase in realized around-the-clock LMP prices. And similar to the first quarter, rail transport costs rose by $4 million compared to the second quarter of last year as part of the 2012 rail contract modification. Year-to-date, Gas segment adjusted EBITDA totaled $114 million compared to $67 million during the first half of 2012. Last year's results were adversely impacted by $83 million in negative financial settlements compared to $10 million in negative settlements during 2013, providing an uplift in comparative results. However, this benefit was partially offset by an $11 million reduction in capacity revenues, primarily at Kendall, and an $8 million reduction in tolling revenues associated with the SCE contracts. Similar to the quarterly results, year-to-date Coal segment adjusted EBITDA fell by $47 million, as the results were negatively impacted by outages, hedge settlements and rail costs. Higher planned and unplanned outages during the first 6 months of 2013 resulted in the loss of 742,000 megawatt hours of generation compared to the first half of 2012, resulting in $17 million of lower gross margin and higher operating expenses. Excluding the volume impacts, energy margin net of hedges declined by $18 million, as lower financial settlements more than offset an increase in LMP prices. Hedges for the first half of 2013 were initiated at levels that ended up being, on average, $0.98 per megawatt hour below market prices, resulting in net payments of over $4 million, while hedges for the same period last year were initiated, on average, at levels that ended up being $3.15 per megawatt hour above market prices, leading to net settlement receipts in excess of $28 million. This $33 million reduction in hedge settlements period-over-period more than offset a $15 million increase in physical energy margin, which resulted from a $1.45-per-megawatt-hour increase in average around-the-clock LMP prices and, together with the impact of outages and a $9 million increase in rail transport costs, led to the decline in segment adjusted EBITDA. As I mentioned earlier, Dynegy completed its corporate refinancing during the second quarter, and the details of our new credit facility and debt issuance are outlined on Slide 25. We're very pleased with the results and believe that the new capital structure not only dramatically reduces our cost of debt but also provides Dynegy with significantly greater financial flexibility, both in managing and growing the company going forward. As part of this effort, we put in place a new corporate revolver. And as you can see on the right-hand side of the slide, availability under the revolver totaled $287 million on July 26. This, together with the $500 million in unrestricted cash brings that Dynegy's total available liquidity to $787 million. As total liquidity has increased, collateral requirements have decreased with cash and LC postings currently totaling $243 million, down from over $300 million at the beginning of 2013 and down from over $800 million this time 2 years ago. As I mentioned earlier, we are updating our 2013 adjusted EBITDA and free cash flow guidance today, and the details can be found on Slide 26. We've been very pleased with the financial performance of the Gas segment this year and the impact of the refinancing. However, weakness at the Coal segment, specifically around widening basis differentials between our plants and INDY Hub has caused us to reassess our adjusted EBITDA expectations for the year. Beginning with the Gas segment, we are increasing the midpoint of our guidance range by $20 million, as higher-than-expected spark spreads at Independence and Moss Landing have resulted in higher generation and gross margin at those facilities. Additionally, our Moss Landing and Morro Bay facilities will be receiving resource adequacy payments in excess of our original forecast for the year. As you can see, we have also narrowed the range from $25 million to $15 million, as the segment's highly hedged position and strong operational performance has increased our confidence in the segment's full year results. At the Coal segment, the primary driver behind the unit's underperformance is a weakening relationship between INDY Hub prices and our plant LMPs. This has impacted us in 2 ways: at certain times, lowering the prices we receive for our power at our plant LMPs; and at other times, increasing financial settlements as INDY Hub prices rise without a corresponding uplift at our plants. As Bob indicated earlier, we initiated guidance at the beginning of the year with around-the-clock basis of soon-to-be $4.36 per megawatt hour. But given our limited ability to hedge that exposure, we highlighted that a $1 change in this number would translate into a $22 million change in adjusted EBITDA. With actual around-the-clock basis of $7.86 per megawatt hour through the first 6 months, we have reevaluated this assumption for the rest of the year and have reset our around-the-clock basis assumption for the balance of the year at $6.70 per megawatt hour. With this revised assumption, our blended average basis for the year is assumed to be $7.11 per megawatt hour, or $2.75 per megawatt hour higher than originally anticipated. Based on the sensitivity provided, this alone would lower results by $60 million. Half of this has been offset, however, by rise in INDY Hub prices from our original forecast of $30.06 per megawatt hour, on average, around-the-clock for 2013 to $31.46, using actual prices to date and balance of year INDY Hub prices as of July 29. As a result of these factors, our estimated 2013 average around-the-clock LMP price now stands at $24.35 per megawatt hour versus our original forecast of $25.70, leading to a reduction in physical energy revenues of approximately $30 million. Normally, what we would expect to see from our financial hedges would be positive settlements to offset the loss in physical energy revenues. But due to the breakdown in the relationship between our plants and INDY Hub, this is not what has happened. Instead, CoalCo's hedges have moved out the money by approximately $25 million, net of basis swaps and FTR positions, compared to our original forecast as INDY Hub prices have risen. This, together with the reduction in physical energy revenue, brings the total impact of basis differentials net to approximately $55 million for the year relative to our original guidance. The balance of the $70 million change in the Coal segment guidance range is primarily attributable to higher-than-expected outages during the first half of the year and lower capacity revenues compared to our forecast. Before leaving the Coal segment discussion, I would note that our updated forecast in guidance range is as of July 29 and incorporates our hedge profile and forward commodity price curves as of that date. With over 4 million megawatt hours of our expected generation for the balance of the year open to the market, our results remain highly sensitive to market prices for the remainder of the year. Despite the reduced expectations for our consolidated adjusted EBITDA, we are lifting our 2013 free cash flow target by $50 million to $190 million to $215 million, primarily as a result of the timing and structure of the refinancing. In our original forecast, we assumed that the refinancing will be executed in August of this year at an all-in blended rate of 6%. As a result of executing in April and May at an all-in blended rate of 4.72%, our forecasted interest expense for the year has been reduced by $30 million. Additionally, the company was able to free up $335 million in previously restricted cash versus an estimated $298 million, providing an additional $37 million uplift. And finally, we anticipated repaying $150 million in debt so that the refinancing would total $1.2 billion. Instead, we chose to pay down only $61 million using a portion of the $89 million difference to fund the incremental costs incurred as a result of the larger debt issuance, the larger revolver, the bond issuance that was not in the original plan and the incremental make-whole payment due to the previous lenders as a result of repaying their debt before the August call date. These additional costs totaled $56 million, leaving $33 million in additional cash provided by the lower debt repayment, net of additional transaction expenses. This amount, together with the lower interest expense for the year and a higher restricted cash return, accounts for the $100 million cash flow uplift associated with the refinancing and, when netted against the updated consolidated adjusted EBITDA guidance, for the $50 million increase in free cash flow guidance. With that, I'll turn the call back over to Bob.