The Specialty P&C insurance operations generated an underwriting profit of $54 million in the 2020 second quarter, compared to $60 million in the 2019 second quarter. Second quarter 2020 underwriting results included $85 million in COVID-19 related losses. In the first quarter of 2020, the Company reported $10 million in COVID-19 related losses. Given the uncertainties surrounding the ultimate number or scope of claims relating to the pandemic, these charges, approximately 90% of which establish reserves for claims that have been incurred but not reported (IBNR), represent the Company’s current best estimate of losses from the pandemic and related economic disruption. Approximately 70% of AFG’s COVID-19 related losses were reported in our workers’ compensation, executive liability and trade credit businesses, with the remainder spread across a number of other businesses.
Higher underwriting profitability in our Property and Transportation Group was more than offset by lower underwriting profits in our Specialty Casualty and Specialty Financial Groups. The second quarter 2020 combined ratio of 95.2% was 0.2 points higher than the prior year period. Results in the second quarter of 2020 include 7.6 points of favorable prior year reserve development, compared to 3.4 points in the 2019 second quarter. In addition to the 7.6 points of negative impact of COVID-19 on the combined ratio for the second quarter of 2020, catastrophe losses added 2.3 points, compared to 0.9 points in the comparable prior year period. Catastrophe losses in the second quarter of 2020 included $4 million (0.4 points on the combined ratio) attributable to civil unrest losses.
Second quarter 2020 gross and net written premiums were down 8% and 11%, respectively, when compared to the second quarter of 2019, primarily as the result of the run-off of Neon. Excluding the impact of the Neon runoff, gross written premiums were up 2% and net written premiums decreased 1% year-over-year.
Average renewal pricing across our entire P&C Group was up approximately 9% for the quarter. Excluding our workers’ compensation business, renewal pricing was up approximately 13%. Both measures reflect an improvement from renewal rate increases achieved in the first quarter of 2020. Renewal pricing is the highest we have achieved in more than fifteen years in each of our Specialty P&C sub-segments and in our Specialty P&C Group overall.
Further details about AFG’s Specialty P&C operations may be found in the accompanying schedules.
The Property and Transportation Group reported an underwriting profit of $33 million in the second quarter of 2020, compared to $4 million in the second quarter of 2019. These results were primarily the result of higher favorable prior period reserve development in our transportation businesses. COVID-19 related losses were $3 million in this group in the second quarter, and catastrophe losses added another $15 million. By comparison, catastrophe losses were $8 million in the 2019 second quarter.
Second quarter 2020 gross and net written premiums in this group increased 6% and 1%, respectively, when compared to the second quarter of 2019, which was impacted by delayed acreage reporting from insureds as a result of excess moisture and late planting of corn and soybean crops. Excluding crop insurance, 2020 gross and net written premiums in this group decreased by 3% and 5%, respectively, when compared to the 2019 second quarter. Decreases in premiums due to return of premiums and reduced exposures as a result of COVID-19 were tempered by new business opportunities in our transportation, property and inland marine and ocean marine businesses. Overall renewal rates in this group increased 7% on average for the second quarter of 2020, an improvement from renewal rate increases achieved in the first quarter of 2020.
The Specialty Casualty Group reported an underwriting profit of $27 million in the second quarter of 2020, compared to $47 million in the second quarter of 2019. COVID-19 related losses were $52 million in the second quarter of 2020, primarily in our workers’ compensation and executive liability businesses. These losses, in addition to lower year-over year underwriting profits in our alternative markets and social services businesses, were partially offset by higher favorable prior year reserve development, primarily in
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